Synonyms for Biplane:

n.

airship, aeroplane, Air Force One, b-52, aircraft, balloon. •airplane (noun)
airbus, bomber, cargo plane, fighter, jet, helicopter, hydroplane, airliner, glider, jet fighter, dive bomber, airplane, monoplane.

Other synonyms:

aircraft, aeroplane, airship, Air Force One. balloon. •Other relevant words:
aircraft, aeroplane, airship, balloon.

Usage examples for biplane

1. 96 shows a typical biplane and though there are certain modifications in most modern machines, the principles upon which it was built apply to all aeroplanes. – The Mastery of the Air by William J. Claxton