専せん門もん

noun

specialty; field of expertise; major

Refers to the subject or field someone studies, works in, or is especially knowledgeable about. Common in phrases such as 専門は〜, 専門外, and 専門家.

• 私わたしの専せん門もんは日本にほん近きん代だい文ぶん学がくです。

  My specialty is modern Japanese literature.

• それは専せん門もん外がいなので、詳くわしくは分わかりません。

  That is outside my field, so I do not know the details.

noun

exclusive focus; doing only; specializing solely in

Often follows another noun as X専門, meaning that a shop, service, person, or role is limited to or focused exclusively on X.

• この店みせはテイクアウト専せん門もんです。

  This shop is takeout only.

• 彼かれは聞きき役やく専せん門もんで、ほとんど自じ分ぶんの話はなしをしない。

  He sticks to being the listener and hardly ever talks about himself.