hawk vs war hawk

hawk and war hawk both are nouns.

Word	Noun	Adjective	Verb	Adverb
hawk	Yes	No	Yes	No
war hawk	Yes	No	No	No

As nouns, hawk and war hawk are synonyms defined as:

hawk and war hawk: an advocate of an aggressive policy on foreign relations

hawk (noun)	war hawk (noun)
diurnal bird of prey typically having short rounded wings and a long tail	an advocate of an aggressive policy on foreign relations
a square board with a handle underneath; used by masons to hold or carry mortar
an advocate of an aggressive policy on foreign relations

hawk (verb)	war hawk (verb)
clear mucus or food from one's throat
hunt with hawks
sell or offer for sale from place to place