To Worry
To Be Concerned, To Be Anxious
する verb
You know that 心配 is "a worry." What about the verb version of that? It would be to worry.
The reading comes straight from 心配 so try to make sure you know that word so you can read this word! It's also all jukugo on'yomi reading, too, so you should be able to figure it out regardless.
生活を心配する
to worry about one's livelihood
親を心配する
to worry about one's parents
病気を心配する
to worry about illness
父は兄のことをいつも心配しています。
My father is always worried about his brother.
社長が十一時になっても出社してないので社員たちは心配しています。
The staff are worried as the president has not yet come to work, although it's already past eleven o'clock.
売り上げを心配する時間があるならセールスの電話を一本でも多くしてよ！
If you have time to worry about sales, make more sales calls!