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The 31bd Glossary: Every Term You Need

Every word in our lobby — from the odds board to the slot paytable — means something specific. This glossary covers the core terms across game mechanics, account management, payments and live tables so you can make sharper choices before you commit a single…

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31bd The 31bd Glossary: Every Term You Need
31bd Knowing the Language Changes How You Play

Knowing the Language Changes How You Play

When you understand what RTP means, you pick slots differently. When you know what rollover means, you read a promotion without surprises. The terms here are not academic — they connect directly to real decisions: which table to sit at, how to verify your account, how a bKash withdrawal gets processed. We have grouped them by area so you can jump to

what matters most right now, whether that is a crash game multiplier or an Asian handicap line on a cricket match. Availability of features depends on your local law and eligible region.

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Get Help With Any Term or Feature

If a term on a game page, a promotion or a withdrawal screen is not in this glossary, our support team can clarify it. Reach us through the channel that works for your device and timing.

Live Chat Open the chat icon in the lobby footer. Agents can explain any term on a game page, a promotion condition or an account screen in plain English.
Email Support Send your question to our support address. Useful for detailed KYC queries, withdrawal clarifications or anything that needs a written answer you can refer back to.
Account Help Section Your account dashboard has a help section covering wallet verification, bKash and Nagad deposit steps, and common error codes with plain-language explanations for each.

Essential Game Mechanics Defined

These are the terms you will see repeated across slots, table games and crash titles in our lobby. Each definition is written plain — no jargon layered on jargon.

RTP stands for Return to Player — the percentage of total bets a game returns over many rounds. We show RTP only where the provider, such as Pragmatic Play or PG Soft, publishes it.

House edge is the mathematical advantage the platform holds on any game. A lower house edge means more of your stake statistically stays in play over time. It varies by game type.

Volatility describes how a slot pays out — high volatility means fewer but larger wins; low volatility means smaller wins more often. It affects session length and bankroll planning significantly.

A wager or turnover requirement is the number of times you must bet a specific amount before a bonus balance becomes withdrawable. Always check this figure in the promotion details first.

A jackpot is the highest possible prize pool in a slot, triggered by a specific symbol combination or bonus feature. Some slots cap this amount; others accumulate it from ongoing rounds.

A live dealer is a real person dealing cards or spinning a wheel on a video stream, broadcast from a studio. Games like Baccarat Circle use live dealers rather than an RNG engine.

Odds, Wallet and Account Terms Explained

These terms cover the sportsbook side, your payment rails and what happens when you verify your account. Players following cricket markets or using bKash, Nagad and Rocket for deposits will want these clear.

Asian handicap removes the draw outcome by giving one side a virtual head start. In cricket or football, it narrows your bet to two outcomes, which generally shortens the odds range available.

Over/under is a bet on whether a combined score or stat — runs in cricket, total goals — will finish above or below a line the sportsbook sets. You are not picking a winner.

Rollover is the same as turnover — how many times the bonus amount must be wagered before withdrawal. A rollover of five means a 500 taka bonus needs 2,500 taka in total bets.

An e-wallet is a mobile money account — bKash, Nagad or Rocket are the relevant ones here. You send funds from your wallet app to the account number shown in the deposit screen.

KYC stands for Know Your Customer — the identity verification step where you submit a national ID or equivalent document. Withdrawals, especially large ones, typically require a completed KYC check.

Account limits are caps set on deposit amounts, session stakes or withdrawal totals, either by the platform or set voluntarily in your account settings to manage how much you spend per period.

Common Questions About Features These Terms Describe

Understanding a term is step one — knowing how it applies inside our lobby is step two. These questions connect the definitions above to real account actions and game choices you will face.

On titles from Pragmatic Play and PG Soft, RTP is shown in the game info panel — tap the information icon before you start a round. We only display it where the provider publishes the figure.

Open your bKash app, send the amount to the number shown on our deposit screen, enter your bKash PIN to confirm, then copy the transaction ID back into the deposit form. Your balance updates once our system matches the transfer.

A KYC check is usually triggered when you request a withdrawal above a threshold or when our system flags a new payment method. Submit your national ID through the verification tab in your account dashboard to clear it.

In Crash Bangladesh Arena, a multiplier rises from 1x after each round starts. You cash out before the round ends to lock in that multiple on your stake — if you wait too long, the round closes and the stake is lost.

For a BPL match, an Asian handicap line adjusts runs or wickets to level both sides. Your bet is on whether the favoured team covers that margin, removing a straight draw from the possible outcomes entirely.

Yes — the account settings section includes options to set stake caps or session controls per your own preference. Changes take effect after a short confirmation period shown in the settings screen.
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31Bd Glossary

Service availability depends on eligible regions and local law. Users should check local rules before opening an account.

Access may be available only where local law permits.