boss

IPA(Pronunciation)

/bɒs/

Adjective

Canada Liverpudlian US not-comparable slang

(slang, US, Canada, Liverpudlian) Of excellent quality, first-rate.

Japanese Meaning

最高級の / 一流の / 極上の

My coworker gave a boss presentation that impressed everyone.

同僚はみんなを感心させる最高のプレゼンをした。

Sense（1）

(slang, US, Canada, Liverpudlian) Of excellent quality, first-rate.

That is a boss Zefron poster.