磨きなさい

brush, polish

→ 磨く
磨き to polish + なさい Polite imperative
verb · formal Rare #41,031
brush, polish A directive form, often used by a parent or someone in authority.
JA: 寝る前に歯を磨きなさい。
EN: Brush your teeth before bed.
Conjugation of 磨く
Imperative
磨きなさい

外へ出る前に靴を磨きなさい。

Polish your shoes before going outside.

歯はきれいに磨きなさい。

Brush your teeth well.

必ず、歯は磨きなさい。

Be sure to brush your teeth.

外出の前に必ず靴を磨きなさい。

Always polish your shoes before going out.