centering vs centring

centering and centring both are nouns.

Word	Noun	Adjective	Verb	Adverb
centering	Yes	No	No	No
centring	Yes	No	No	No

As nouns, centering and centring are synonyms defined as:

centering and centring: (American football) putting the ball in play by passing it (between the legs) to a back

Other synonyms of centering include snap.

As nouns, centering and centring are synonyms defined as:

centering and centring: the concentration of attention or energy on something

Other synonyms of centering include direction, focal point, focus, focusing, focussing.

centering (noun)	centring (noun)
(American football) putting the ball in play by passing it (between the legs) to a back	(American football) putting the ball in play by passing it (between the legs) to a back
the concentration of attention or energy on something	the concentration of attention or energy on something