To retrace one's steps.
To exercise a racehorse around the racetrack in the opposite direction to that in which races are run.
To taxi down an active runway in the opposite direction to that being used for takeoff.
To repeat or review work already done.
the act of backtracking
To turn (the foot) inwards.
To divert; to convert to a wrong use.
To turn (something) upside down or inside out; to place in a contrary order or direction.
To move (the root note of a chord) up or down an octave, resulting in a change in pitch.
To undergo inversion, as sugar.
Subjected to the process of inversion; inverted; converted.
The base of a tunnel on which the road or railway may be laid and used when construction is through unstable ground. It may be flat or form a continuous curve with the tunnel arch.
A skateboarding trick where the skater grabs the board and plants a hand on the coping so as to balance upside-down on the lip of a ramp.
An invertebrate.
An inverted arch (as in a sewer).
An elevation of a pipe at a certain point along the pipe.
The lowest point inside a pipe at a certain point.