WTC vs twin towers

WTC and twin towers both are nouns.

Word	Noun	Adjective	Verb	Adverb
WTC	Yes	No	No	No
twin towers	Yes	No	No	No

As nouns, WTC and twin towers are synonyms defined as:

WTC and twin towers: twin skyscrapers 110 stories high in New York City; built 1368 feet tall in 1970 to 1973; destroyed by a terrorist attack on September 11, 2001

Other synonyms of WTC include World Trade Center.

WTC (noun)	twin towers (noun)
twin skyscrapers 110 stories high in New York City; built 1368 feet tall in 1970 to 1973; destroyed by a terrorist attack on September 11, 2001	twin skyscrapers 110 stories high in New York City; built 1368 feet tall in 1970 to 1973; destroyed by a terrorist attack on September 11, 2001