construct vs retrace

construct is a noun but retrace is not a noun.

Word	Noun	Adjective	Verb	Adverb
construct	Yes	No	Yes	No
retrace	No	No	Yes	No

As verbs, construct and retrace are synonyms defined as:

Other synonyms of construct include reconstruct.

construct (noun)	retrace (noun)
an abstract or general idea inferred or derived from specific instances

construct (verb)	retrace (verb)
reassemble mentally	reassemble mentally
draw with suitable instruments and under specified conditions	to go back over again
make by combining materials and parts
put together out of artificial or natural components or parts
create by organizing and linking ideas, arguments, or concepts
create by linking linguistic units