A place in a water pipe, pump, etc., where air accumulates
for want of an outlet.

A wagon, or other vehicle.

Fig.: A snare; an ambush; a stratagem; any device by which
one may be caught unawares.

A bend, sag, or partitioned chamber, in a drain, soil pipe,
sewer, etc., arranged so that the liquid contents form a seal which
prevents passage of air or gas, but permits the flow of liquids.

A wooden instrument shaped somewhat like a shoe, used in the
game of trapball. It consists of a pivoted arm on one end of which is
placed the ball to be thrown into the air by striking the other end.
Also, a machine for throwing into the air glass balls, clay pigeons,
etc., to be shot at.

A machine or contrivance that shuts suddenly, as with a
spring, used for taking game or other animals; as, a trap for foxes.

An old term rather loosely used to designate various
dark-colored, heavy igneous rocks, including especially the
feldspathic-augitic rocks, basalt, dolerite, amygdaloid, etc., but
including also some kinds of diorite. Called also trap rock.

To dress with ornaments; to adorn; – said especially of
horses.

Of or pertaining to trap rock; as, a trap dike.

The game of trapball.