As nouns the difference between vexer and lexer
is that vexer is one who vexes; one who annoys while lexer is (computing) a computer program that performs lexical analysis.
vexer
English
Noun
(
en noun)
One who vexes; one who annoys
----
lexer
Noun
(
en noun)
(computing) A computer program that performs lexical analysis.
Synonyms
* lexical analyzer