airbrush vs atomiser

airbrush and atomiser both are nouns.

Word	Noun	Adjective	Verb	Adverb
airbrush	Yes	No	Yes	No
atomiser	Yes	No	No	No

As nouns, atomiser is a hypernym of airbrush; that is, atomiser is a word with a broader meaning than airbrush:

airbrush: an atomizer to spray paint by means of compressed air
atomiser: a dispenser that turns a liquid (such as perfume) into a fine mist

Other hypernyms of airbrush include atomizer, nebuliser, nebulizer, spray, sprayer.

airbrush (noun)	atomiser (noun)
an atomizer to spray paint by means of compressed air	a dispenser that turns a liquid (such as perfume) into a fine mist

airbrush (verb)	atomiser (verb)
paint with an airbrush