専門
Kana: せんもん
specialized
Example sentence
彼は日本語の専門家です。
かれはにほんごのせんもんかです。
He is a specialist in Japanese.
What 専門 means
専門 (せんもん) is a Japanese word meaning “specialized”. It belongs to the Describing Words topic and appears at Level 3 (and again in Level 4), so it is one of the words worth learning early when you study Japanese.