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sin - definition and synonyms


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noun sin pronunciation in American English /sɪn/
Word Forms
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  1. 1
    [countable/uncountable] an action, thought, or way of behaving that is wrong according to religious laws

    the sin of pride/greed

    Christians believe in the forgiveness of sins.

    commit (a) sin:

    She had committed a sin and was ashamed to confess it.

  2. 2
    [singular] an action or way of behaving that you think is morally wrong

    It’s a sin the way she spends money.

    1. a.
      used about something that some people think is bad but is not really serious

      To her I was guilty of the sin of being too happy.

derived word




used to describe something which is done more carefully and over a longer period of time …

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Open Dictionary


the practice of giving birth in the presence of several friends and relatives

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