wood engraving vs wood block

wood engraving and wood block both are nouns.

Word	Noun	Adjective	Verb	Adverb
wood engraving	Yes	No	No	No
wood block	Yes	No	No	No

As nouns, wood engraving and wood block are synonyms defined as:

wood engraving and wood block: engraving consisting of a block of wood with a design cut into it; used to make prints

Other synonyms of wood engraving include woodcut.

wood engraving (noun)	wood block (noun)
engraving consisting of a block of wood with a design cut into it; used to make prints	engraving consisting of a block of wood with a design cut into it; used to make prints
a print made from a woodcut