通つう常じょう口こう語ご

Meanings

1

Refers to the ordinary spoken language used in daily conversation, as opposed to formal or written language.

口こう語ご
口語 is a broader term for spoken or colloquial language, while 通常口語 specifically emphasizes ordinary, everyday usage.
文ぶん語ご
文語 refers to written or literary language, the opposite of 口語.

Compound of 通常 (tsūjō, 'usual, ordinary') and 口語 (kōgo, 'spoken language').