私服
Meanings
1
noun, noun which may take the genitive case particle 'no'
ordinary clothes; plain clothes; casual wear
Clothes worn instead of a uniform, especially in contrast with 制服. Used as a noun and in の-modifying phrases such as 私服の学生.
See also: 制服
Please come in ordinary clothes tomorrow, not in uniform.
That high school allows students to come to school in their own clothes.
2
abbreviation
Abbreviation of 私服刑事 or 私服警官. Used in police, crime-reporting, or fiction contexts for an officer not wearing a uniform.
See also: 私服刑事
A plainclothes officer tailed the suspect.
Usage patterns
- 私服で〈動詞〉to do something while dressed in ordinary clothes (not a uniform)
On days off, I often go out in plain clothes.
- 私服に着替えるto change out of a uniform into ordinary clothes
After club activities finished, I changed into plain clothes and went home.
- 私服姿の〈人〉a person dressed in ordinary clothes (rather than a uniform)
The students were surprised to see their teacher dressed in plain clothes.