noun
giant monster; large monster
Refers to a giant monster, especially in the context of Japanese kaiju films (e.g., Godzilla, Mothra). The term evokes the classic tokusatsu genre.
この映画には大怪獣が登場する。
A giant monster appears in this movie.
大怪獣バトルというゲームが人気だ。
A game called Giant Monster Battle is popular.