sect vs left wing

sect and left wing both are nouns.

Word	Noun	Adjective	Verb	Adverb
sect	Yes	No	No	No
left wing	Yes	No	No	No

As nouns, left wing is a hyponym of sect; that is, left wing is a word with a more specific, narrower meaning than sect:

sect: a dissenting clique
left wing: those who support varying degrees of social or political or economic change designed to promote the public welfare

sect (noun)	left wing (noun)
a dissenting clique	those who support varying degrees of social or political or economic change designed to promote the public welfare
a subdivision of a larger religious group