English

Definition of arch adjective from the Oxford Advanced Learner's Dictionary

 

arch

 adjective
adjective
BrE BrE//ɑːtʃ//
 
; NAmE NAmE//ɑːrtʃ//
 
 
jump to other results
[usually before noun] (often disapproving) seeming amused because you know more about a situation than other people an arch tone of voice He tapped the side of his nose in an uncharacteristically arch gesture. Word Originadjective mid 17th cent.: from arch-, by association with the sense ‘rogue’ in combinations such as arch-scoundrel.
See the Oxford Advanced American Dictionary entry: arch