Extra guide page
Casino terms in plain English
This glossary keeps language practical. If a term appears in our comparison tables, you should be able to read it once here and recognise what it means on an operator page.
Core gameplay terms
| Term | Meaning |
|---|---|
| RTP | Return to Player: the theoretical long-run return percentage of a game, usually shown over a very large number of rounds. |
| Volatility | How a game tends to distribute wins: lower volatility usually means smaller, more frequent wins; higher volatility means larger swings. |
| Payline | A pattern that symbols must land on to form a winning combination in many slots. |
| Bonus round | An in-game feature sequence, often triggered by symbols, with separate mechanics from base play. |
Offer and terms language
| Term | Meaning |
|---|---|
| Wagering requirement | How many times bonus funds or winnings must usually be played before withdrawal conditions are met. |
| Game weighting | How much different games count toward wagering requirements. |
| Maximum bet clause | A cap on stake size while certain bonus conditions are active. |
| Offer expiry | The period in which an offer must be used or completed before it lapses. |
Safety and account terms
| Term | Meaning |
|---|---|
| Self-exclusion | A formal block on account access for a fixed period; in the UK this can include GamStop across participating operators. |
| Cooling-off | A shorter temporary break from account activity. |
| Reality check | An on-screen reminder showing session time or spend context, depending on operator setup. |
| Source of funds checks | Compliance checks operators may request under UK regulatory obligations. |