An expression of strong disapproval.
To criticize (someone) sharply; reprimand.
To express sharp criticism regarding (an act, for example).
To check or repress.
A sharp reprimand.
To blame or scold in a sharp way; reprimand.
To force back.
Rebuke is defined as to scold, blame or criticize in a sharp way.
An example of rebuke is a parent yelling at a child for not keeping up with them while walking.
Origin of rebuke
From Middle English rebuken, from Anglo-Norman rebuker (“to beat back, repel"), from re- + Old French *buker, buchier, buschier (“to strike, hack down, chop"), from busche (“wood"), from Vulgar Latin buska (“wood, grove"), from Frankish *busc, *busk (“grove"), from Proto-Germanic *buskaz (“bush"). More at re-, bush.