expand vs extend

expand and extend both are verbs.

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

As verbs, expand and extend are synonyms defined as:

expand (verb)	extend (verb)
grow vigorously	extend one's limbs or muscles, or the entire body
exaggerate or make bigger	thrust or extend out
become larger in size or volume or quantity	extend in scope or range or area
expand the influence of	lengthen in time; cause to be or last longer
make bigger or wider in size, volume, or quantity	continue or extend
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing	expand the influence of
extend in one or more directions	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