likeness vs semblance

likeness and semblance both are nouns.

Word	Noun	Adjective	Verb	Adverb
likeness	Yes	No	No	No
semblance	Yes	No	No	No

As nouns, likeness and semblance are synonyms defined as:

likeness and semblance: picture consisting of a graphic image of a person or thing

likeness (noun)	semblance (noun)
picture consisting of a graphic image of a person or thing	picture consisting of a graphic image of a person or thing
similarity in appearance or character or nature between persons or things	an outward or token appearance or form that is deliberately misleading
	an erroneous mental representation