specter vs wraith

specter and wraith both are nouns.

Word	Noun	Adjective	Verb	Adverb
specter	Yes	No	No	No
wraith	Yes	No	No	No

As nouns, specter and wraith are synonyms defined as:

Other synonyms of specter include ghost, shade, spectre, spook.

specter (noun)	wraith (noun)
a mental representation of some haunting experience	a mental representation of some haunting experience
a ghostly appearing figure