English Reference
noun

odds

n.
US /ˈɑdz/ UK /ˈɒdz/ odds

  1. 01 B2 Upper Intermediate

    the likelihood or chance that a particular thing will happen.

    the probability that a certain event will occur, often expressed as a ratio.

    Simple

    The odds of winning the lottery are very low, but people still buy tickets.

    In context

    Given the current economic climate, the odds of a full recovery within the next fiscal year remain slim according to most analysts.

    Usage

    Always used in the plural form.

  2. 02 B2 Upper Intermediate

    the amount of money you can win in a bet compared to the amount you risk.

    the ratio of the potential winnings to the stake in a gambling context.

    Simple

    The bookies have offered odds of ten-to-one on the local team winning.

    In context

    Professional gamblers rarely place bets unless the odds offered by the bookmaker significantly undervalue the actual probability of the outcome.

    Usage

    Usually plural; often used with the preposition 'on' or 'against'.

  3. 03 C1 Advanced Formal

    to be in a state of disagreement or conflict with someone.

    a state of being in conflict, variance, or disagreement; almost exclusively used in the idiom 'at odds with'.

    Simple

    The two brothers were often at odds with each other over how to run the family business.

    In context

    The director's vision for the film was fundamentally at odds with the studio's requirement for a family-friendly rating.

    Usage

    Used in the fixed phrase 'at odds with'.

  4. 04 B2 Upper Intermediate

    to succeed even though it seemed impossible or very unlikely.

    referring to a situation where success is achieved despite very low probability or significant obstacles.

    Simple

    Against all odds, the small boat survived the storm and reached the shore.

    In context

    The startup managed to secure a second round of funding against the odds, despite the general downturn in tech investment.

    Usage

    Used in the fixed phrase 'against the odds' or 'against all odds'.

    despite the difficulties

Usage odds ratio

The answer is that it makes sense to switch, because you double your odds of winning from 1/3 to 2/3.

The Guardian· 17 Aug 2026

Deeply eccentric, staffed by the barely employable, and permanently teetering on the brink of bankruptcy, St Anne’s hangs on, against all the odds.

The Guardian· 16 Jul 2026
This entry
Level C1 · Advanced
Frequency Common
Updated