rat.
a rat, medium-sized rodent belonging to the genus Rattus, or of certain other genera in the family Muridae
Meaning & usage
a rat, medium-sized rodent belonging to the genus Rattus, or of certain other genera in the family Muridae
any of the numerous, fairly large members of several rodent families that resemble true rats in appearance
a traitor; a scoundrel; a quisling
an informant or snitch
an urchin
a pauper; undesirable commoner
a watch
Where this word comes from
From Middle Dutch ratte, from Old Dutch *rato, *roto, from Frankish *ratt, *rato, from Proto-Germanic *rattaz (“rat”). Related to Old High German rato.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.