Of or relating to a wall; on, or in, or against a wall. / Resembling a wall; perpendicular or steep.

To create a mural.

(US, colloquial) murder in the first degree.

Of, characterized by, or pertaining to murder or murderers. / Of a person: intending or likely to commit murder; bloodthirsty, homicidal.

(idiomatic) To do something bad or illegal and not be punished.

A murder in which organs or other body parts are harvested for the production of traditional medicine

(intransitive, idiomatic) To scream loudly in fear, pain, etc. / (intransitive, idiomatic) To protest loudly or angrily.

plural of murder-suicide

(criminology) A murder in which the killer subsequently commits suicide.

(games) A children's game in which a designated player attempts to wink at as many people as possible in order to "kill" them, without being caught by the player who has to find out who the murderer is.