attic vs garret

attic and garret both are nouns.

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

As nouns, attic and garret are synonyms defined as:

attic and garret: floor consisting of open space at the top of a house just below roof; often used for storage

Other synonyms of attic include loft.

attic (noun)	garret (noun)
floor consisting of open space at the top of a house just below roof; often used for storage	floor consisting of open space at the top of a house just below roof; often used for storage
(architecture) a low wall at the top of the entablature; hides the roof
informal terms for a human head