心配(しんぱい)

心配(しんぱい) is both a noun meaning 'worry' and used with する to mean 'to worry about.'

KANJI BREAKDOWN:
心(しん) (heart/mind) + 配(ぱい) (distribute) - suggesting one's mind is scattered with concern.

COMMON PATTERNS:

• 心配(しんぱい)する: to worry
• 心配(しんぱい)になる: to become worried
• 〜が心配(しんぱい)だ: to be worried about ~
• 〜を心配(しんぱい)する: to worry about ~

USEFUL EXPRESSIONS:

• 心配(しんぱい)(は)いりません: There's no need to worry
• 心配(しんぱい)しないで: Don't worry
• ご心配(しんぱい)をおかけしました: I'm sorry for worrying you (polite)
• 心配(しんぱい)性(しょう): worrywart, someone who worries a lot

RELATED:

• 不安(ふあん): anxiety, unease (more about general anxiety)
• 気(き)になる: to be on one's mind