centering vs focusing

centering and focusing both are nouns.

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

As nouns, centering and focusing are synonyms defined as:

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

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

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