prim

Short definition from Wiktionary

Adjective

1. 1
   Of a person, their manner or appearance: Formal and precise; stiffly decorous.
2. 2
   Of a person: Prudish; straight-laced.
3. 3
   Of things: Neat; trim.

Verb

1. 1
   To make one's expression prim.
2. 2
   To give a prim or demure expression to (one's face, mouth, or (rare) lips).
3. 3
   To dress (one) up affectedly or demurely.

Noun

1. 1
   A prim person.
2. 2
   privet

Proper noun

1. 1
   A surname.