An exchange of two comparable things.
A financial derivative in which two parties agree to exchange one stream of cashflow against another stream.
Space available in a swap file for use as auxiliary memory.
A blow; a stroke.
To exchange or give (something) in an exchange (for something else).
To hit, to strike.
To beat the air, or ply the wings, with a sweeping motion or noise; to flap.
To descend or fall; to rush hastily or violently.