also: リフレーン
noun
Used in music and poetry for a repeated line or chorus. Also used metaphorically for a recurring phrase or theme.
この曲のリフレインはとても耳に残る。
The refrain of this song is very catchy.
彼のスピーチには同じリフレインが何度も出てきた。
The same refrain appeared many times in his speech.