()にする

きにする
godan verb
to mind, to care about
1. to mind, to care about
To worry about or pay attention to something.
()にしないで。
Don't worry about it.
(ひと)()()にする。
To care about what others think.
(こま)かいことを()にする。
To fuss over small details.
(ほか)(ひと)()()にしすぎないでください。
Please don't worry too much about what others think.
彼女(かのじょ)(ちい)さなことを()にする性格(せいかく)だ。
She has a personality that worries about small things.

()にする means to actively mind or care about something.

COMMON PATTERNS:

  • ()にしないで (don't worry about it)
  • ()にしない (not to care)
  • 〜を()にする (to care about ~)
  • (ひと)()()にする (care about others' opinions)

CONTRAST WITH ()になる:

  • ()にする: actively choosing to worry/care (volitional)
  • ()になる: something weighing on mind (non-volitional)

COMMON PHRASE:
()にしないで is a common way to say "don't worry" or "never mind".