concentrate vs zoom in

concentrate is a noun but zoom in is not a noun.

Word	Noun	Adjective	Verb	Adverb
concentrate	Yes	No	Yes	No
zoom in	No	No	Yes	No

As verbs, zoom in is a hyponym of concentrate; that is, zoom in is a word with a more specific, narrower meaning than concentrate:

Other hyponyms of concentrate include absorb, engross, engulf, immerse, plunge, soak up, steep, recall, think, hear, listen, take heed.

concentrate (noun)	zoom in (noun)
a concentrated example of something
a concentrated form of a foodstuff; the bulk is reduced by removing water
the desired mineral that is left after impurities have been removed from mined ore

concentrate (verb)	zoom in (verb)
cook until very little liquid is left	examine closely; focus one's attention on
make denser, stronger, or purer
make central
be cooked until very little liquid is left
make more concise
compress or concentrate
direct one's attention on something
draw together or meet in one common center