bid vs outbid

bid is a noun but outbid is not a noun.

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

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

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

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

bid: make a demand, as for a card or a suit or a show of hands
outbid: bid over an opponent's bid when one's partner has not bid or doubled

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

bid (noun)	outbid (noun)
an attempt to get something
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

bid (verb)	outbid (verb)
ask someone in a friendly way to do something	bid higher than others
invoke upon	bid over an opponent's bid when one's partner has not bid or doubled
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