south southeast vs sou'-sou'-east

south southeast and sou'-sou'-east both are nouns.

Word	Noun	Adjective	Verb	Adverb
south southeast	Yes	No	No	No
sou'-sou'-east	Yes	No	No	Yes

As nouns, south southeast and sou'-sou'-east are synonyms defined as:

south southeast and sou'-sou'-east: the compass point midway between south and southeast

Other synonyms of south southeast include SSE.

south southeast (noun)	sou'-sou'-east (noun)
the compass point midway between south and southeast	the compass point midway between south and southeast

south southeast (adverb)	sou'-sou'-east (adverb)
	to, toward, or in the south southeast