Token approval allows a smart contract or spender to move a certain amount of tokens from a user's wallet.
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Short definition
Token Approval is token approval allows a smart contract or spender to move a certain amount of tokens from a user's wallet.
Simple explanation
Approvals are common in DEX swaps and DeFi, but risky approvals can allow unwanted token movement.
Why it matters
Users should understand spender addresses, allowances, and unlimited approvals before confirming.
Example context
A DEX router may need approval to spend a user's token before completing a swap.