south southwest vs SSW

south southwest and SSW both are nouns.

Word	Noun	Adjective	Verb	Adverb
south southwest	Yes	No	No	No
SSW	Yes	No	No	No

As nouns, south southwest and SSW are synonyms defined as:

south southwest and SSW: the compass point midway between south and southwest

Other synonyms of south southwest include sou'-sou'-west.

south southwest (noun)	SSW (noun)
the compass point midway between south and southwest	the compass point midway between south and southwest