Is shouting at someone and using words like
you will be destroyed a form of abuse? Or does abuse necessarily involve some bad word etc... Will
rebuke be a more appropriate word for the former statement?
Abuse can be purely verbal. If so, synonyms include "belittle" and "berate."
Verbal abuse need not, but frequently does, involve impolite or pejorative language. "Abuse" does imply that it is either totally unjustified or else disproportionate. In this sense, abuse has a narrower meaning than "scold," which may be justified and proportionate.
To "rebuke" is to assert in good faith that someone has done something wrong. A rebuke may be abusive as well if it is disproportionate, but a rebuke is not necessarily abusive.