centre vs engross

centre is a noun but engross is not a noun.

Word	Noun	Adjective	Verb	Adverb
centre	Yes	Yes	Yes	No
engross	No	No	Yes	No

As verbs, engross is a hyponym of centre; that is, engross is a word with a more specific, narrower meaning than centre:

Other hyponyms of centre include absorb, engulf, immerse, plunge, soak up, steep, recall, think, zoom in, hear, listen, take heed.

centre (noun)	engross (noun)
a position on a basketball team of the player who participates in the jump that starts the game
(American football) the position of the player on the line of scrimmage who puts the ball in play
the position on a hockey team of the player who participates in the face off at the beginning of the game
a building dedicated to a particular activity
the piece of ground in the outfield directly ahead of the catcher
mercantile establishment consisting of a carefully landscaped complex of shops representing leading merchandisers; usually includes restaurants and a convenient parking area; a modern version of the traditional marketplace
a cluster of nerve cells governing a specific bodily process
the choicest or most essential or most vital part of some idea or experience
the object upon which interest and attention focuses
the sweet central portion of a piece of candy that is enclosed in chocolate or some other covering
politically moderate persons; centrists
the middle of a military or naval formation
a point equidistant from the ends of a line or the extremities of a figure
an area that is approximately central within some larger region
a place where some particular activity is concentrated
(football) the person who plays center on the line of scrimmage and snaps the ball to the quarterback
(basketball) the person who plays center on a basketball team
(ice hockey) the person who plays center on a hockey team

centre (adjective)	engross (adjective)
of or belonging to neither the right nor the left politically or intellectually
equally distant from the extremes

centre (verb)	engross (verb)
direct one's attention on something	consume all of one's attention or time
move into the center	devote (oneself) fully to
center upon