Work, Occupation
Noun, する verb, and の adjective
しごと
この仕事は、交通ひこみですか？
Does this job reimburse transportation costs?
赤ちゃんの仕事は泣くことです。
The business of a baby is to cry.
「時間内に、この仕事を終えられると思うか？」「さあ、それはどうかな。」
"Do you think we can finish this work in time?" "Well I wouldn’t bet on it."
Your "doing actions" are the things you do. What do you say when someone asks "what you do"? You tell them what your job is.
This word uses the on'yomi reading for 仕 and the kun'yomi reading for 事. Please note that 事 uses the reading こと, which you didn't learn with the kanji, but you have come across it once or twice by now, and because of the way rendaku works, it's changed to the voiced ごと.