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Definition of arch- combining form from the Oxford Advanced Learner's Dictionary

arch-

combining form
 
/ɑːtʃ/
 
/ɑːrtʃ/
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  1. (in nouns) main; most important or most extreme
    • archbishop
    • arch-enemy
    Word Originvia Latin from Greek arkhi-, from arkhos ‘chief’.
See arch- in the Oxford Advanced American Dictionary
Check pronunciation: arch-

Nearby words

unclear
adjective
 
 
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