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

 

combust

 verb
verb
BrE BrE//kəmˈbʌst//
 
; NAmE NAmE//kəmˈbʌst//
 
Verb Forms present simple I / you / we / they combust
BrE BrE//kəmˈbʌst//
 
; NAmE NAmE//kəmˈbʌst//
 
he / she / it combusts
BrE BrE//kəmˈbʌsts//
 
; NAmE NAmE//kəmˈbʌsts//
 
past simple combusted
BrE BrE//kəmˈbʌstɪd//
 
; NAmE NAmE//kəmˈbʌstɪd//
 
past participle combusted
BrE BrE//kəmˈbʌstɪd//
 
; NAmE NAmE//kəmˈbʌstɪd//
 
-ing form combusting
BrE BrE//kəmˈbʌstɪŋ//
 
; NAmE NAmE//kəmˈbʌstɪŋ//
 
 
jump to other results
[intransitive, transitive] combust (something) to start to burn; to start to burn something Word Origin late 15th cent.: from obsolete combust ‘burnt’, from Latin combustus, past participle of comburere ‘burn up’.
See the Oxford Advanced American Dictionary entry: combust