come vs extend

come is a noun but extend is not a noun.

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

As verbs, extend is a hypernym of come; that is, extend is a word with a broader meaning than come:

come: extend or reach
extend: stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point

Other hypernyms of come include go, lead, pass, run.

come (noun)	extend (noun)
the thick white fluid containing spermatozoa that is ejaculated by the male genital tract

come (verb)	extend (verb)
come to pass; arrive, as in due course	extend one's limbs or muscles, or the entire body
be found or available	thrust or extend out
reach or enter a state, relation, condition, use, or position	extend in scope or range or area
happen as a result	lengthen in time; cause to be or last longer
have a certain priority	continue or extend
come to one's mind; suggest itself	expand the influence of
move toward, travel toward something or somebody or approach something or somebody	increase in quantity or bulk by adding a cheaper substance
be received	prolong the time allowed for payment of
cover a certain distance	use to the utmost; exert vigorously or to full capacity
reach a destination; arrive by movement or progress	open or straighten out; unbend
experience orgasm	extend or stretch out to a greater or the full length
come under, be classified or included	cause to move at full gallop
proceed or get along	offer verbally
extend or reach	make available; provide
to be the product or result	span an interval of distance, space or time
exist or occur in a certain point in a series	reach outward in space
be a native of	stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point
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