English

Definition of rat verb from the Oxford Advanced Learner's Dictionary

 

rat

 verb
verb
BrE BrE//ræt//
 
; NAmE NAmE//ræt//
 
Verb Forms present simple I / you / we / they rat
BrE BrE//ræt//
 
; NAmE NAmE//ræt//
 
he / she / it rats
BrE BrE//ræts//
 
; NAmE NAmE//ræts//
 
past simple ratted
BrE BrE//ˈrætɪd//
 
; NAmE NAmE//ˈrætɪd//
 
past participle ratted
BrE BrE//ˈrætɪd//
 
; NAmE NAmE//ˈrætɪd//
 
-ing form ratting
BrE BrE//ˈrætɪŋ//
 
; NAmE NAmE//ˈrætɪŋ//
 
 
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(ratting, ratted) Word Origin Old English ræt, probably of Romance origin; reinforced in Middle English by Old French rat. The verb dates from the early 19th cent. Phrasal Verbsrat on somebodyrat on somethingrat somebodyout (to somebody)
See the Oxford Advanced American Dictionary entry: rat