Hurl as a transitive verb would mean to throw something with great force; that is to fling. It means sending with great vigor; to thrust. It could be used to mean to throw down; or to overthrow; to lunge. It may refer to uttering something vehemently; as in 'hurling insults'. It is also a slang term, meaning to vomit or throw up.
As an intransitive verb, hurl would mean moving with at great speeds, or with great force or violence; it could mean to hurtle. It could also mean throwing something with force. Again it is a slang term, meaning to vomit or throw up. In baseball terms it means to pitch the ball.
Depending on the context in which it is used, synonyms for the same include cast, lunge, hurtle, thrust and throw.
As an intransitive verb, hurl would mean moving with at great speeds, or with great force or violence; it could mean to hurtle. It could also mean throwing something with force. Again it is a slang term, meaning to vomit or throw up. In baseball terms it means to pitch the ball.
Depending on the context in which it is used, synonyms for the same include cast, lunge, hurtle, thrust and throw.