loggia vs colonnade

loggia and colonnade both are nouns.

Word	Noun	Adjective	Verb	Adverb
loggia	Yes	No	No	No
colonnade	Yes	No	No	No

As nouns, colonnade is a hypernym of loggia; that is, colonnade is a word with a broader meaning than loggia:

loggia: a roofed arcade or gallery with open sides stretching along the front or side of a building; often at an upper level
colonnade: a structure composed of a series of arches supported by columns

Other hypernyms of loggia include arcade.

loggia (noun)	colonnade (noun)
a roofed arcade or gallery with open sides stretching along the front or side of a building; often at an upper level	structure consisting of a row of evenly spaced columns
	a structure composed of a series of arches supported by columns