judge vs underestimate

judge and underestimate both are nouns.

Word	Noun	Adjective	Verb	Adverb
judge	Yes	No	Yes	No
underestimate	Yes	No	Yes	No

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

Other hyponyms of judge include quantise, quantize, misgauge, place, put, set, give, lowball, assess, make, count, reckon, truncate, guesstimate.

judge (noun)	underestimate (noun)
a public official authorized to decide questions brought before a court of justice	an estimation that is too low; an estimate that is less than the true or actual value
an authority who is able to estimate worth or quality

judge (verb)	underestimate (verb)
form a critical opinion of	make a deliberately low estimate
judge tentatively or form an estimate of (quantities or time)	make too low an estimate of
determine the result of (a competition)	assign too low a value to
pronounce judgment on
put on trial or hear a case and sit as the judge at the trial of