Centring vs. Centering

Present participle of centre

A temporary, usually wooden framework on which an arch, vault, or dome is supported during construction.

See Centring.

Present participle of center

(countable) A type of formwork which serves as a temporary structure during the construction of arches and bridges.

The process of moving something to a centre, normally before some other process.

The concentration of attention or energy on something;

(American football) putting the ball in play by passing it (between the legs) to a back;