bid vs overbid

bid and overbid both are nouns.

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

As nouns, overbid is a hyponym of bid; that is, overbid is a word with a more specific, narrower meaning than bid:

Other hyponyms of bid include buyout bid.

As nouns, overbid is a hyponym of bid; that is, overbid is a word with a more specific, narrower meaning than bid:

bid: (bridge) the number of tricks a bridge player is willing to contract to make
overbid: (bridge) a bid that is higher than your opponent's bid (especially when your partner has not bid at all and your bid exceeds the value of your hand)

Other hyponyms of bid include contract, declaration, takeout, overcall, pre-empt, preempt, preemptive bid.

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

Other hyponyms of bid include by-bid, subscribe, underbid, outbid, underbid.

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

Other hyponyms of bid include raise, double, outcall, underbid, outbid, preempt.

bid (noun)	overbid (noun)
an attempt to get something	a bid that is higher than preceding bids
a formal proposal to buy at a specified price	(bridge) a bid that is higher than your opponent's bid (especially when your partner has not bid at all and your bid exceeds the value of your hand)
(bridge) the number of tricks a bridge player is willing to contract to make
an authoritative direction or instruction to do something

bid (verb)	overbid (verb)
ask someone in a friendly way to do something	bid more than the object is worth
invoke upon	to bid for more tricks than one can expect to win
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