garret vs cockloft

garret and cockloft both are nouns.

Word	Noun	Adjective	Verb	Adverb
garret	Yes	No	No	No
cockloft	Yes	No	No	No

As nouns, cockloft is a hyponym of garret; that is, cockloft is a word with a more specific, narrower meaning than garret:

garret: floor consisting of open space at the top of a house just below roof; often used for storage
cockloft: a small loft or garret

Other hyponyms of garret include hayloft, haymow, mow.

garret (noun)	cockloft (noun)
floor consisting of open space at the top of a house just below roof; often used for storage	a small loft or garret