Senses
开斋/ 開齋 to stop a vegetarian diet
To resume eating meat after a period of vegetarianism, often for religious reasons or health
开斋/ 開齋 to end Ramadan
Specifically used in Islam for coming to the end of a fast such as Ramadan.
开斋/ 開齋 to break a precept against killing
(Literary, of a monk) to break the religious taboo against killing people
开斋/ 開齋 to break a fast
To eat for the first time after a period of fasting