APC vs armoured personnel carrier

APC and armoured personnel carrier both are nouns.

Word	Noun	Adjective	Verb	Adverb
APC	Yes	No	No	No
armoured personnel carrier	Yes	No	No	No

As nouns, APC and armoured personnel carrier are synonyms defined as:

APC and armoured personnel carrier: (military) an armored vehicle (usually equipped with caterpillar treads) that is used to transport infantry

Other synonyms of APC include armored personnel carrier.

APC (noun)	armoured personnel carrier (noun)
a drug combination found in some over-the-counter headache remedies (aspirin and phenacetin and caffeine)	(military) an armored vehicle (usually equipped with caterpillar treads) that is used to transport infantry
(military) an armored vehicle (usually equipped with caterpillar treads) that is used to transport infantry