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unsend

(messaging, email, texting) The functionality or ability to reverse a message transmission.

ənˈsɛnd202 viewsLast reviewed Jun 29, 2026+ Add a definition
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#1·Apr 27, 2026

(messaging, email, texting) The functionality or ability to reverse a message transmission.

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#2·Apr 27, 2026

(transitive, messaging, email, texting) To undo, cancel, or reverse the transmission of a message.

For parents

"unsend" means: To undo, cancel, or reverse the transmission of a message.. This is a fairly neutral word with no inherent risk attached. There is no real cause for parental concern; it is descriptive vocabulary rather than something dangerous. If your child uses it, context will usually make the meaning clear. A brief, curious question about where they heard it is generally enough to know whether to follow up.

For ESL learners

"unsend" means: To undo, cancel, or reverse the transmission of a message.. Register: neutral, standard English, usable in most everyday contexts. A common non-native mistake is to use the word in the wrong register, or to assume one fixed meaning when it is actually polysemous; always check the surrounding register and the audience before producing it yourself. In formal writing, prefer a neutral synonym or a short descriptive phrase, and use this word only when you have heard or read it being used naturally in a comparable context.

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