noun
plural sins
an action that is considered to be wrong according to religious or moral law [count]
[count] :an action that is considered to be bad - usually singular
(as) guilty/miserable/ugly as sin
informal :very guilty/miserable/ugly
for your sins
chiefly Brit humorous - used to say that you are doing something unpleasant, difficult, etc., as a form of punishment
live in sin
verb
sins; sinned; sinning
[no obj] :to do something that is considered wrong according to religious or moral law :to commit a sin