The term honour killing is used in our society to suggest
1
killing of the aggressors by one to save the honour of one's country.
2
killing of a girl who marries a youngman from other caste or of a different religious community.
3
killing of the dacoits by a person to save the honour of the female inmates that might be despoiled by them.
4
killing by a woman of a person who is about to trangress on her daughter's honour.