hashtag

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{senseid|en|metadata tag marked by a hash sign}} {{lb|en|Internet}} A [[metadata]] tag, [[signaled]] by a [[preceding]] [[hash sign]] ({{l|mul|#}}), used to label content. {{defdate|from 2007}}
2. {{senseid|en|hash sign itself, metonymically}} {{lb|en|internet|metonymically|informal}} The [[hash sign]] itself, especially when used as part of a hashtag.

Verb

1. {{lb|en|ambitransitive|Internet}} To label (a message) with a hashtag.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.