bow leg vs disability

bow leg and disability both are nouns.

Word	Noun	Adjective	Verb	Adverb
bow leg	Yes	No	No	No
disability	Yes	No	No	No

As nouns, disability is a hypernym of bow leg; that is, disability is a word with a broader meaning than bow leg:

bow leg: a leg bowed outward at the knee (or below the knee)
disability: the condition of being unable to perform as a consequence of physical or mental unfitness

Other hypernyms of bow leg include leg, disablement, handicap, impairment.

As nouns, disability is a hypernym of bow leg; that is, disability is a word with a broader meaning than bow leg:

bow leg: outward curvature of the legs
disability: the condition of being unable to perform as a consequence of physical or mental unfitness

Other hypernyms of bow leg include disablement, handicap, impairment.

bow leg (noun)	disability (noun)
a leg bowed outward at the knee (or below the knee)	the condition of being unable to perform as a consequence of physical or mental unfitness
outward curvature of the legs