Slot Dictionary

Playing online slots is not rocket science, but that’s exactly what it sounds like when you hear seasoned players chatting. Don’t worry, we’ve put together a list of terms to help you make sense of it all.

Slot Tracker Terminology

Avg. Bonus WinThe average win (multiplier) in the bonus games.
Best Win (Monetary)The largest win tracked so far (monetary value).
Best Win (Multiplier)The largest win tracked so far (multiplier).
Bonus Buy InfoStatistics on the performance of slots which allow entry into the bonus rounds for a fee, specifically within the bonus rounds.
Bonus FrequencyThe frequency at which bonuses are triggered. 
Community RTPRTP is short for Return to Player. Community RTP is an RTP stat that’s based on the data gathered from ALL our community’s players/spins. 

Note: RTP is used to describe the percentage of wagered money that players can expect to win back over time. It is calculated by dividing the amount of money paid out by a slot by the amount of money wagered, and multiplying by 100.
Community Volatility The volatility of a game based on the results of the community’s spins.

Volatility describes how a slot’s payout potential is distributed across its spins. In simple terms, a game which is extremely volatile can be expected to pay out rarely, but when it does pay out, the wins are significantly large. A game which has an extremely low volatility, on the other hand, is fairly predictable and pays out regular (small) wins.
Declared Volatility The official volatility rating provided by the slot’s manufacturer which is based on millions of simulated spins. 
Declared/Official RTPThe official RTP provided by the slot’s manufacturer which is based on thousands of simulated spins.
Hit RateThe frequency at which wins are triggered.
In (Loss)The total amount of money wagered.
Out (Profit) The total amount of money that has been won by players.
P&LThe total sum of all profits and losses.
SRPSRP is a prediction of the return-to-player on a per-spin basis. SRP adds up the RTP of each and every spin and divides the final amount by the total number of spins. What you’re left with is the estimated RTP for an average spin (Per Spin RTP). Per Spin RTP is less likely to be affected by bet sizes.
Total BonusesThe number of bonus games triggered. Every time a player enters into the bonus rounds, a single bonus game is registered irrespective of the number of bonus rounds (aka free spins) that are awarded.
Total SpinsThe total number of spins tracked.
Wagering RateA rating of the player’s chances of fulfilling a casino’s wagering requirement when using bonus money.
Win RatioA pie chart showing base game wins (teal) vs bonus game wins (red).

Slot Terms 

243 Ways to WinA slot in which any combination of three or more matching symbols can result in a win as long as they appear on adjacent reels, from left to right. In the end, such slots have 243 ways to win.
3 Reel SlotA slot that is composed of 3 reels.
3D Video SlotsSlots which utilize 3D graphics and animation.
5 Reel SlotA slot that is composed of 5 reels.
ActionA term used to describe the total amount of time spent by a player playing slots. This term is commonly used when players are part of a slots club, and is connected to rewards or bonuses that the player might receive. 
Active PaylineA payline that has been activated by the player’s wager.
All WaysA slot that does not require symbols to be adjacent to one another in order to form part of a winning combination. As long as the symbols appear on adjacent reels, they count as part of the same combination.
Annuity WinnerA winner of a lottery prize which, rather than being paid in a single lump sum, is paid out in yearly annuity payouts.
AutospinA function of online slots that allows the player to spin the reels automatically for a preset number of times.
AWPStands for ‘Amusement With Prize’ – this is a type of slot game that incorporates player interaction into the gameplay. 
BarA common symbol found in many old slot machines.
Basic SlotA slot game with a single payline and a static (non progressive) jackpot.
BetSynonymous with wager, it is the monetary value that is gambled on a spin.
Bet MaxThe maximum amount that can be wagered.
Bet MinThe minimum amount that can be wagered. 
Bet OneWhen a player bets one unit or credit on a single spin.
Big HitWhen a spin results in a significantly large payout – possibly a jackpot win.
Bonus Round (Game/Feature)Sometimes called bonus game or free spins. It is an event that can be triggered in which the state of the game changes, usually with different mechanics and RTP.
Branded SlotsA slot game that has been created utilizing a well known brand or intellectual property as part of an agreement between the manufacturer of the slot and the brand.
Buy a FeatureSome slots allow you to activate specific features in the game for a price. This is called Bonus Buy or Buy a Feature. 
Buy a PaySome slot games will only award their top payout if your wager is bigger than a certain amount. ‘Buying a pay’ is a term that refers to placing a wager that allows you to compete for the top prize. 
CarouselIn land-based casino, a carousel is a group (or row) of slot machines that are usually grouped according to betting units.
Cascading ReelsCascading reels, also known as tumbling reels, are slots mechanics in which symbols that form winning combinations disappear, allowing more symbols to drop. 
Cash OutThe amount of cash paid out by a slot.
CashbackCashback usually refers to cashback bonuses. This is a form of bonus money that enables you to recoup a percentage of your losses. 
Casino BonusBonus money or credits. Casinos offer several promotional offers, often in the form of bonus money with wagering requirements. 
Certified SlotsA slot that has been certified and checked by relevant authorities to ensure that it is compliant, random and fair.
Classic SlotsA traditional type of slot that usually involves three reels and one to three paylines. Symbols tend to include fruits, bells, shamrocks, jokers, and BAR symbols.
CoinCoin is related to the value of the overall wager. The value of the coin can be adjusted along with other variables. Increasing coin value increases the monetary value of the bet.
Coin SizeOften referred to as coin value, this allows you to adjust the monetary value of your wager.
Coin SlotA traditional type of land-based slot that requires the player to insert coins to play.
Cold SlotA cold slot is a slot that hasn’t paid out in a while (opposite of a hot slot).
Collect ButtonA button that converts credits into cash.
CompsComps is short for complimentary. It refers to complimentary items or services given out by casinos to encourage players to play at their casino. 
Console Slot MachinesA slot machine which is angled downwards, designed to be more comfortable for the player.
CreditsOften referred to as coins, these are the units that comprise the wager, which always has an underlying real monetary value. 
DenominationDifferent values and sizes of coins that the player can choose from when determining the wager.
DropsUsually used to refer to when a jackpot ‘drops’ i.e. gets triggered.
FeatureA feature within the gameplay intended to make the game more exciting. These features can be triggered randomly or through symbol combinations. 
Five LinerA five liner is a slot machine that contains three reels and allows wins on up to five payout lines. 
Fixed Value SlotsSlots where the betting amount and coin size cannot be altered. 
Free SpinsFree spins can refer to bonus spins that are used to promote slot games or casinos. These free spins are usually connected to wagering requirements. Free spins can also refer to bonus spins that are built into a slot game – often in the so-called bonus game.
Free-to-PlayA term used to describe slots – especially online slots – which allow the player to play for free.
Fruit MachineAn old term for slot machines.
Gamble FeatureA feature found in some slots that typically offers players the chance to double the winnings that they have just accrued on the board or in a bonus game.
Hammer a MachineA term used by slot players that refers to when a player plays the same slot for a long period of time. 
HitA winning event in slots. 
Hit and RunA term used to describe a slots player that plays a single payline slot at maximum bet, and moves on to a different slot if it doesn’t pay out. 
Hit FrequencyIn simple terms, hit frequency is a percentage that refers to the probability of a spin resulting in a win. It is a theoretical number and certainly not an accurate prediction. 
Hold Percentage“Hold” is the expected amount of each wager that the slot game “holds” over time. This is a theoretical number and reflects the behaviour of slots over the long term.
HopperA term, used in land-based slots, that refers to a payout reserve container in which coins are retained by a slot machine to automatically pay jackpots. 
Hot SlotA term used to describe a slot game that has recently been delivering consecutive wins.
i-SlotA modern type of online slot game that allows you to save your position during a bonus game and resume it later. 
IconsAnother term for slot symbols.
Instant WinnerA term that refers to a jackpot win that is instant rather than paid in installments. 
JackpotA large sum of money that can be triggered and won by players.
LeverThe lever, attached to some traditional-type slot machines, initiates a spin.
LineA line of symbols that awards a paying combination according to a slot’s paytable. Most slots’ lines go from left to right, covering one symbol on each reel. They usually don’t have to go straight across the reels, but can zig-zag. Many times, lines need to be activated by adjusting the bet level.
Line BetWhen a bet is placed on a specific line in a slot game.
Linked Progressive JackpotWhen multiple progressive jackpot games are linked, with each game contributing to a shared jackpot.
Loose SlotA term used to describe a slot game that pays out often.
Maximum BetThe maximum amount that can be bet on a game.
MegabucksA specific type of traditional slot machine; Megabucks slot machines have three reels and one payline going right through the middle of the reels. 
Minimum BetThe minimum amount that can be bet on a game.
Multi-LineSlots which have multiple paylines – these allow for winning combinations to be made on multiple lines rather than just one.
Multi-WaySlots which don’t require symbols to land on adjacent positions – but rather adjacent reels – are known as ways-to-win slots. 
MultiplierWhen describing wins, gamblers often use multipliers – describing the win in relation to the size of the wager. This gives a better indication of the profit made.
NudgeA feature that offers the possibility to change the outcome of a spin by shifting a reel down, either a single position or multiple positions. The way this is executed varies.
One-Armed BanditAn old term for land-based slots.
Online SlotA digital slot game that is played online.
Payback PercentagePayback percentage (also known as RTP) refers to the percentage of wagered cash that is won back by players over the long term. It is a theoretical number and should not be considered as an accurate prediction of the outcome of your spin.
PaylineThe line on which a payout will be awarded if winning combinations land. Some slots require the player to choose the number of lines that are active. 
PayoutThe amount of money that is paid out as a result of a winning spin.
PaytableA chart within each slot that explains how to win on a particular slot. This includes information on how to unlock features and the payouts of various combinations. 
Penny SlotsA term used to describe a slot game with a minimum bet per line of 1 cent. 
PokiesAn Australian term for a traditional slot machine.
Primary JackpotThe highest payout prize that a player can win from a slot.
Progressive JackpotA jackpot that increases as a portion of the players’ losses contribute to increasing the size of the jackpot.
Random Number Generator (RNG)At the heart of each slot game is the Random Number Generator (RNG). This is what generates the randomized result of each of the player’s spins.
Reel StopA function of slots that enables players to stop the reels early rather than wait for them to come to a halt automatically. 
ReelsThe vertical columns of symbols that spin. The symbols that show up on the screen when the reels stop spinning are what determine the outcome of the spin.
Return to Player (RTP)RTP refers to the theoretical percentage of the players’ wager that is returned to the player as winnings over the long term.
RowsThe horizontal sequence of adjacent symbols (one on each reel) that show up when the reels stop spinning. 
Scatter SymbolA common type of symbol, especially in online slots. Very often, landing a certain number of scatter symbols is required to trigger free spins.
Short WinA term used to describe when a player wins a large jackpot after very little time playing.
Signature SlotsBespoke slots created for casinos which often include the brand’s name in the title. 
Skill BonusOnline slots that include a skill element in the bonus rounds.
Skill StopA function of slots that enables players to stop the reels early rather than wait for them to come to a halt automatically. 
Slant TopA type of slot machine with a slanted screen, and seats that are lower to the ground because the games are set lower.
Slot ClubSlot clubs are clubs set up by casinos that usually require a membership fee. Once a player is part of a slot club, they stand to gain benefits such as bonus spins or prizes.
Slot HostAn employee at the casino who is there to assist in serving customers as well as handling slots club member issues. 
Slot tournamentThis can refer to a variety of competitions organized by casinos for their players. Players usually compete with each other by trying to land the biggest win on a slot in a specified amount of time. The winner gets some sort of prize.
Sound of RainA term used by players – especially in land-based casinos – to describe the sound made when a player hits a big win or cashes out.
SpinThe act of spinning the reels in a slot game determines whether you win or lose.
Stacked SymbolsSymbols that cover multiple positions within a reel.
Stacked WildsWild symbols that cover multiple positions within a reel.
Streaky SlotsUsed to describe slots that have a reputation of delivering a string of consecutive wins.
SymbolsEach reel consists of various symbols – low, mid, high-paying symbols. There are also other symbols like Scatter symbols and Wilds. Each symbol serves a different function and combines with other symbols to trigger events.
Three-LinerA slot that is based on a 3×3 block, with just one payline.
Tight SlotsUsed to describe a slot that is perceived as not paying out generously (i.e. having a low RTP).
Total BetThe total amount wagered on a specific spin. 
TrailA specific bonus feature that can be triggered in online slots. The player moves along a track, unlocking prizes and awards as they go. 
Tumbling ReelsTumbling reels, also known as cascading reels, usually refers to a type of slot where symbols that form winning combinations disappear, allowing more symbols to drop. 
VarianceIn the casino world, variance is used synonymously with volatility. 
Video SlotsA slot that features digital animations – especially feature animations – sounds, and thematic graphics. 
Virtual ReelA reel in online slots such as would appear on a PC or mobile screen.
VolatilityVolatility refers to the theoretical distribution of RTP within a game. In simple terms, a high volatility slot is one that pays out rarely, but delivers significant wins (high risk/high reward). A low volatility slot, by contrast, pays out often, but delivers small wins (low risk/low reward).
WagerThe amount bet on a spin.
Wide Area Progressive (WAP)A type of progressive jackpot slot which is linked to several participating jurisdictions and/or regulated markets.
Wild MultiplierA wild symbol that multiplies any payout that it helps deliver.
Wild SymbolA symbol that substitutes for other symbols, delivering the highest possible value within a combination.
WinThe amount paid to the player after a winning spin.
Win-Both-WaysA slot that allows winning combinations that can be formed from both left-to-right and right-to-left. 
Zig-ZagA term used to describe the line that is created when the winning payline/s on online slots results in a zig-zag shape rather than a straight line. 

A Note From Our Spin-Tracking Team 

We hope you found these definitions useful. If you have any questions or disagree with one of our explanations, don’t hesitate to get in touch! We’re always ready to help.

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