insect repellent vs insectifuge

insect repellent and insectifuge both are nouns.

Word	Noun	Adjective	Verb	Adverb
insect repellent	Yes	No	No	No
insectifuge	Yes	No	No	No

As nouns, insect repellent and insectifuge are synonyms defined as:

insect repellent and insectifuge: a chemical substance that repels insects

Other synonyms of insect repellent include insect repellant.

insect repellent (noun)	insectifuge (noun)
a chemical substance that repels insects	a chemical substance that repels insects