catch vs watch

catch and watch both are nouns.

Word	Noun	Adjective	Verb	Adverb
catch	Yes	No	Yes	No
watch	Yes	No	Yes	No

As verbs, catch and watch are synonyms defined as:

Other synonyms of catch include see, take in, view.

As verbs, watch is a hypernym of catch; that is, watch is a word with a broader meaning than catch:

catch (noun)	watch (noun)
the act of catching an object with the hands	a purposeful surveillance to guard or observe
the act of apprehending (especially apprehending a criminal)	the rite of staying awake for devotional purposes (especially on the eve of a religious festival)
a cooperative game in which a ball is passed back and forth	a small portable timepiece
a fastener that fastens or locks a door or window	a person employed to keep watch for some anticipated event
a restraint that checks the motion of something	a period of time (4 or 2 hours) during which some of a ship's crew are on duty
a drawback or difficulty that is not readily evident	the period during which someone (especially a guard) is on duty
a break or check in the voice (usually a sign of strong emotion)
anything that is caught (especially if it is worth catching)
a person regarded as a good matrimonial prospect
the quantity that was caught

catch (verb)	watch (verb)
come down with	find out, learn, or determine with certainty, usually by making an inquiry or other effort
be struck or affected by	look attentively
delay or hold up; prevent from proceeding on schedule or as planned	be vigilant, be on the lookout or be careful
detect a blunder or misstep	observe without intervening
discover or come upon accidentally, suddenly, or unexpectedly; catch somebody doing something or in a certain state	observe or determine by looking
grasp with the mind or develop an understanding of	see or watch
become aware of	follow with the eyes or the mind
be the catcher
catch up with and possibly overtake
take hold of so as to seize or restrain or stop the motion of
succeed in catching or seizing, especially after a chase
capture as if by hunting, snaring, or trapping
to hook or entangle
attract and fix
cause to become accidentally or suddenly caught, ensnared, or entangled
spread or be communicated
take in and retain
reach with a blow or hit in a particular spot
apprehend and reproduce accurately
attract; cause to be enamored
reach in time
hear, usually without the knowledge of the speakers
perceive with the senses quickly, suddenly, or momentarily
see or watch
suffer from the receipt of
perceive by hearing
get or regain something necessary, usually quickly or briefly
check oneself during an action
start burning