manoeuver vs crab

manoeuver is not a noun while crab is a noun.

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

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

Other hyponyms of manoeuver include dock, sheer, pull over, helm, navigate, stand out, starboard, conn, navigate, pilot, channel, corner, tree, park.

manoeuver (noun)	crab (noun)
	a stroke of the oar that either misses the water or digs too deeply
	decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers
	a louse that infests the pubic region of the human body
	the edible flesh of any of various crabs
	a quarrelsome grouch

manoeuver (verb)	crab (verb)
perform a movement in military or naval tactics in order to secure an advantage in attack or defense	complain
direct the course; determine the direction of travelling	fish for crab
act in order to achieve a certain goal	scurry sideways like a crab
	direct (an aircraft) into a crosswind