I. air ‧ brush 1 /ˈeəbrʌʃ $ ˈer-/ BrE AmE noun [countable]
a piece of equipment that uses air to put paint onto a surface
II. airbrush 2 BrE AmE verb [transitive]
to use an airbrush to make a picture or photograph look better
airbrush somebody/something ↔ out phrasal verb
to remove someone or something from a picture or photograph using an airbrush