noun, noun or participle which takes 'suru', transitive verb
A straightforward noun for help or assistance, often used in contexts where someone lends a hand. Also used as a suru-verb meaning 'to help'.
彼の手助けがなければ、この仕事は終わらなかっただろう。
Without his help, this work probably wouldn't have been finished.
It's only natural to help a friend in need.