gauge vs reckon

gauge is a noun but reckon is not a noun.

Word	Noun	Adjective	Verb	Adverb
gauge	Yes	No	Yes	No
reckon	No	No	Yes	No

As verbs, reckon is a hypernym of gauge; that is, reckon is a word with a broader meaning than gauge:

Other hypernyms of gauge include calculate, cipher, compute, cypher, figure, work out.

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

gauge (noun)	reckon (noun)
a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc.
the distance between the rails of a railway or between the wheels of a train
the thickness of wire
diameter of a tube or gun barrel
accepted or approved instance or example of a quantity or quality against which others are judged or measured or compared

gauge (verb)	reckon (verb)
measure precisely and against a standard	deem to be
adapt to a specified measurement	make a mathematical calculation or computation
mix in specific proportions	expect, believe, or suppose
judge tentatively or form an estimate of (quantities or time)	judge to be probable
determine the capacity, volume, or contents of by measurement and calculation	have faith or confidence in
rub to a uniform size	take account of