rain gage vs gage

rain gage and gage both are nouns.

Word	Noun	Adjective	Verb	Adverb
rain gage	Yes	No	No	No
gage	Yes	No	Yes	No

As nouns, gage is a hypernym of rain gage; that is, gage is a word with a broader meaning than rain gage:

rain gage: gauge consisting of an instrument to measure the quantity of precipitation
gage: a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc.

Other hypernyms of rain gage include gauge.

rain gage (noun)	gage (noun)
gauge consisting of an instrument to measure the quantity of precipitation	a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc.
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rain gage (verb)	gage (verb)
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