lattice vs fretwork

lattice and fretwork both are nouns.

Word	Noun	Adjective	Verb	Adverb
lattice	Yes	No	No	No
fretwork	Yes	No	No	No

As nouns, lattice and fretwork are synonyms defined as:

lattice and fretwork: framework consisting of an ornamental design made of strips of wood or metal

Other synonyms of lattice include latticework.

lattice (noun)	fretwork (noun)
framework consisting of an ornamental design made of strips of wood or metal	framework consisting of an ornamental design made of strips of wood or metal
small opening (like a window in a door) through which business can be transacted
an arrangement of points or particles or objects in a regular periodic pattern in 2 or 3 dimensions