odds

noun plural but singular or plural in construction \ˈädz\

: the possibility that something will happen : the chance that one thing will happen instead of a different thing

: conditions that make it difficult for something to happen

: two numbers that show how much a person can win by betting a certain amount of money

Full Definition of ODDS

a archaic : inequalities

b obsolete : degree of unlikeness

a : an amount by which one thing exceeds or falls short of another <won the election by considerable odds>

b (1) : a difference favoring one of two opposed things <overwhelming odds> (2) : a difference in terms of advantage or disadvantage <what's the odds, if thinking so makes them happy — Flora Thompson>

c (1) : the probability that one thing is so or will happen rather than another : chances <the odds are against it> (2) : the ratio of the probability of one event to that of an alternative event

: disagreement, variance —usually used with at <faculty and administration often are at odds on everything — W. E. Brock b1930>

a : special favor : partiality

b : an allowance granted by one making a bet to one accepting the bet and designed to equalize the chances favoring one of the bettors

c : the ratio between the amount to be paid off for a winning bet and the amount of the bet

— by all odds

: in every way : without question <by all odds the best book of the year>