Emergency Fund

Money set aside for unexpected expenses.

Educational content only. This page does not provide investment, legal, or regulatory advice.

Why it matters

Emergency Fund matters because it affects financial interpretation, product decisions, and industry communication.

Emergency Fund is commonly explained through its core definition and the practical example used in the glossary.

A common mistake is to use Emergency Fund without understanding its operational and regulatory context.

Emergency Fund may vary across payment rails, regulations, and market practices.

Acquirer

Bank processing payments for merchant.

Algorithmic Trading

Trading using automated algorithms.

AML

Anti Money Laundering.

Anti Money Laundering

Laws against clean dirty money.

Arbitrage

Profiting from price differences in markets.

Chargeback

Reversal of a card payment.

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Adyen

Adyen: Payment methods glossary

Reference source for payments terminology clusters.

Author

Founder and multilingual fintech glossary editor

Reviewer

Editorial and source review layer

Reviewed

3/15/2026