Flypast and Fly-by

Flypast noun - A flight at a low altitude (usually of military aircraft) over spectators on the ground.

Fly-by is a synonym for flypast. In some cases you can use "Fly-by" instead a noun "Flypast".

Fly-by noun - A flight at a low altitude (usually of military aircraft) over spectators on the ground.

Flypast is a synonym for fly-by. You can use "Flypast" instead a noun phrase "Fly-by".