come vs reach

come and reach both are nouns.

Word	Noun	Adjective	Verb	Adverb
come	Yes	No	Yes	No
reach	Yes	No	Yes	No

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

come (noun)	reach (noun)
the thick white fluid containing spermatozoa that is ejaculated by the male genital tract	the act of physically reaching or thrusting out
	an area in which something acts or operates or has power or control:
	the limit of capability
	the limits within which something can be effective

come (verb)	reach (verb)
come to pass; arrive, as in due course	be in or establish communication with
be found or available	to exert much effort or energy
reach or enter a state, relation, condition, use, or position	move forward or upward in order to touch; also in a metaphorical sense
happen as a result	reach a point in time, or a certain state or level
have a certain priority	reach a destination, either real or abstract
come to one's mind; suggest itself	reach a goal
move toward, travel toward something or somebody or approach something or somebody	place into the hands or custody of
be received	to gain with effort
cover a certain distance	to extend as far as
reach a destination; arrive by movement or progress
experience orgasm
come under, be classified or included
proceed or get along
extend or reach
to be the product or result
exist or occur in a certain point in a series
be a native of
to measure up to in kind or quality
add up in number or quantity
come forth
come from; be connected by a relationship of blood, for example