noun, verbal noun, の adjective
If you aid and help someone you are giving them assistance. How kind!
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
Your assistance is vital to the success of this fart plan.
Isn't the word "enjo kōsai" getting old? Now it's "papa katsu," isn't it?
When I was in need of money, the president offered me a helping hand.