aviation vs crab

aviation and crab both are nouns.

Word	Noun	Adjective	Verb	Adverb
aviation	Yes	No	No	No
crab	Yes	No	Yes	No

aviation (noun)	crab (noun)
travel via aircraft	a stroke of the oar that either misses the water or digs too deeply
the art of operating aircraft	decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers
the aggregation of a country's military aircraft	a louse that infests the pubic region of the human body
the operation of aircraft to provide transportation	the edible flesh of any of various crabs
	a quarrelsome grouch

aviation (verb)	crab (verb)
	complain
	fish for crab
	scurry sideways like a crab
	direct (an aircraft) into a crosswind