extend vs traverse

extend is not a noun while traverse is a noun.

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

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

Other hyponyms of extend include cross, span, sweep, sweep, overlap, overspread, spread, ridge, constellate, dot, stud.

extend (noun)	traverse (noun)
	taking a zigzag path on skis
	travel across
	a horizontal crosspiece across a window or separating a door from a window over it
	a horizontal beam that extends across something

extend (verb)	traverse (verb)
extend one's limbs or muscles, or the entire body	deny formally (an allegation of fact by the opposing party) in a legal suit
thrust or extend out	travel across or pass over
extend in scope or range or area	to cover or extend over an area or time period
lengthen in time; cause to be or last longer
continue or extend
expand the influence of
increase in quantity or bulk by adding a cheaper substance
prolong the time allowed for payment of
use to the utmost; exert vigorously or to full capacity
open or straighten out; unbend
extend or stretch out to a greater or the full length
cause to move at full gallop
offer verbally
make available; provide
span an interval of distance, space or time
reach outward in space
stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point