the activity of exerting your muscles in various ways to keep fit
put to use
carry out or practice; as of jobs and professions
at or to or toward the back or rear
the posterior part of a human (or animal) body from the neck to the end of the spine
in or to or toward a past time
related to or located at the back
the side that goes last or is not normally seen
travel backward
be behind; approve of
