LTTE vs terrorist group

LTTE and terrorist group both are nouns.

Word	Noun	Adjective	Verb	Adverb
LTTE	Yes	No	No	No
terrorist group	Yes	No	No	No

LTTE (noun)	terrorist group (noun)
a terrorist organization in Sri Lanka that began in 1970 as a student protest over the limited university access for Tamil students; currently seeks to establish an independent Tamil state called Eelam; relies on guerilla strategy including terrorist tactics that target key government and military personnel	a political movement that uses terror as a weapon to achieve its goals