mujahideen vs mujahadein

mujahideen and mujahadein both are nouns.

Word	Noun	Adjective	Verb	Adverb
mujahideen	Yes	No	No	No
mujahadein	Yes	No	No	No

As nouns, mujahideen and mujahadein are synonyms defined as:

mujahideen and mujahadein: a military force of Muslim guerilla warriors engaged in a jihad

Other synonyms of mujahideen include mujahadeen, mujahadin, mujahedeen, mujahedin, mujahidin.

mujahideen (noun)	mujahadein (noun)
a military force of Muslim guerilla warriors engaged in a jihad	a military force of Muslim guerilla warriors engaged in a jihad