1》 make someone unconscious.
↘knock down (a boxer) for a count of ten.
↘ informal astonish or greatly impress someone.
2》 eliminate a competitor from a knockout competition.
→ knock
1》 make someone unconscious.
↘knock down (a boxer) for a count of ten.
↘ informal astonish or greatly impress someone.
2》 eliminate a competitor from a knockout competition.
→ knock
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004