antiaircraft vs predictor

antiaircraft and predictor both are nouns.

Word	Noun	Adjective	Verb	Adverb
antiaircraft	Yes	Yes	No	No
predictor	Yes	No	No	No

antiaircraft (noun)	predictor (noun)
artillery designed to shoot upward at airplanes	a computer for controlling antiaircraft fire that computes the position of an aircraft at the instant of a shell's arrival
	information that supports a probabilistic estimate of future events
	someone who makes predictions of the future (usually on the basis of special knowledge)

antiaircraft (adjective)	predictor (adjective)
designed for defense from a surface position against air attack