the act of putting holy oil or water on someone in a religious ceremony, in order to make them holy or give them holy responsibilities

They were waiting for the priest to administer the sacrament of unction (last rites). 他们在等待牧师施行涂油圣事（临终仪式）。

Napoleon knelt to receive the triple unction from the Pope on head, arms, and hands. 拿破仑下跪接受教皇为其在额头、手臂和手部行三重涂油礼。

an ointment (= a thick substance, usually containing medicine, used on the skin to help heal it or cure a condition)

Look in their bathroom and you will find enough creams, unctions, and lotions to restock a small chemist. 看看他们的浴室，你会发现那里的涂霜、涂药膏和洗液足够装满一个小药房的。

The whole family was infested, and so began the endless cycle of harsh chemicals, daily lotions, and overnight unctions. 全家都遭了殃，于是开始了一轮又一轮的强力化学品洗涤、每天用洗液清理、涂药膏过夜。

a strong show of emotion, especially one that is not sincere

The men sang this hymn with more unction than tune. 男人们唱这首赞美诗时故作感情深厚，声音却并不和谐。

Naturally the prodigal's return is being celebrated with proper unction. 浪子的回归自然是用适当的涂油礼来庆祝的。