offer vs auction

offer and auction both are nouns.

Word	Noun	Adjective	Verb	Adverb
offer	Yes	No	Yes	No
auction	Yes	No	Yes	No

offer (noun)	auction (noun)
a usually brief attempt	the public sale of something to the highest bidder
something offered (as a proposal or bid)	a variety of bridge in which tricks made in excess of the contract are scored toward game; now generally superseded by contract bridge
the verbal act of offering

offer (verb)	auction (verb)
put forward for consideration	sell at an auction
threaten to do something
ask (someone) to marry you
produce or introduce on the stage
present for acceptance or rejection
propose a payment
give something useful or necessary to
make available for sale
offer verbally
make available; provide
agree freely
mount or put up
present as an act of worship