lexicographer vs compiler

lexicographer and compiler both are nouns.

Word	Noun	Adjective	Verb	Adverb
lexicographer	Yes	No	No	No
compiler	Yes	No	No	No

As nouns, compiler is a hypernym of lexicographer; that is, compiler is a word with a broader meaning than lexicographer:

lexicographer: a compiler or writer of a dictionary; a student of the lexical component of language
compiler: a person who compiles information (as for reference purposes)

Other hypernyms of lexicographer include linguist, linguistic scientist.

lexicographer (noun)	compiler (noun)
a compiler or writer of a dictionary; a student of the lexical component of language	(computer science) a program that decodes instructions written in a higher order language and produces an assembly language program
	a person who compiles information (as for reference purposes)