catch vs rat

catch and rat both are nouns.

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

As verbs, rat is a hyponym of catch; that is, rat is a word with a more specific, narrower meaning than catch:

Other hyponyms of catch include hunt, hunt down, run, track down, frog, bag, batfowl, ensnare, entrap, snare, trammel, trap.

catch (noun)	rat (noun)
the act of catching an object with the hands	any of various long-tailed rodents similar to but larger than a mouse
the act of apprehending (especially apprehending a criminal)	a pad (usually made of hair) worn as part of a woman's coiffure
a cooperative game in which a ball is passed back and forth	a person who is deemed to be despicable or contemptible
a fastener that fastens or locks a door or window	someone who works (or provides workers) during a strike
a restraint that checks the motion of something	one who reveals confidential information to the police or other authority
a drawback or difficulty that is not readily evident
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)	rat (verb)
come down with	give away information about somebody
be struck or affected by	catch rats, especially with dogs
delay or hold up; prevent from proceeding on schedule or as planned	give (hair) the appearance of being fuller by using a rat
detect a blunder or misstep	desert one's party or group of friends, for example, for one's personal advantage
discover or come upon accidentally, suddenly, or unexpectedly; catch somebody doing something or in a certain state	take the place of work of someone on strike
grasp with the mind or develop an understanding of	employ scabs or strike breakers in
become aware of
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