bidder vs bid

bidder and bid both are nouns.

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

bidder (noun)	bid (noun)
someone who makes an offer	an attempt to get something
someone who makes a bid at cards	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

bidder (verb)	bid (verb)
	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