"overbid" in the noun sense
1. overbid
a bid that is higher than preceding bids
2. overbid, overcall
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)
"overbid" in the verb sense
1. overbid
to bid for more tricks than one can expect to win,
2. overbid
bid more than the object is worth
Source: WordNet® (An amazing lexical database of English)
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