The process of moving something to a centre, normally before some other process.
A type of formwork which serves as a temporary structure during the construction of arches and bridges.
An object formed by combining.
One or more elements selected from a set without regard to the order of selection.
An association or alliance of people for some common purpose.
A combination shot; a billiard; a shot where the cue ball hits a ball that strikes another ball on the table.
A sequence of numbers or letters used to open a combination lock.
The act of combining, the state of being combined or the result of combining.
A rapid sequence of punches or strikes in boxing or other combat sports.
A motorcycle and sidecar.