マス

noun

mass; bulk; large quantity

Used especially in art contexts to refer to a solid, three-dimensional mass or volume. Also appears in compound terms like マスゲーム (mass games).

• 彫ちょう刻こくのマス感かんを表ひょう現げんするのが難むずかしい。

  It's difficult to express the sense of mass in sculpture.

noun-modifying (irregular)

mass (media, production, etc.)

Only with reading マス

Prenominal use in compounds like マスコミ (mass communication) or マスプロ (mass production). Not used as a standalone adjective.

• マスメディアの影えい響きょう力りょくは大おおきい。

  The influence of mass media is significant.