auction vs bid

auction and bid both are nouns.

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

auction (noun)	bid (noun)
the public sale of something to the highest bidder	an attempt to get something
a variety of bridge in which tricks made in excess of the contract are scored toward game; now generally superseded by contract bridge	a formal proposal to buy at a specified price
	(bridge) the number of tricks a bridge player is willing to contract to make
	an authoritative direction or instruction to do something

auction (verb)	bid (verb)
sell at an auction	ask someone in a friendly way to do something
	invoke upon
	ask for or request earnestly
	propose a payment
	make a demand, as for a card or a suit or a show of hands
	make a serious effort to attain something