決まり文句 (きまりもんく) Japanese meaning | KotomoraMeanings
1
noun
set phrase; stock phrase; cliché
Refers to a fixed, conventional expression often used in specific situations, sometimes with a negative nuance of being overused or unoriginal.
お悔やみの手紙には、よく決まり文句が使われる。
Set phrases are often used in condolence letters.