Proverbs and idioms are similar in that they impart wisdom or meaning to a group of people. Idioms contain a group of words whose meaning is established by usage but isn’t apparent as a phrase, such as under the weather, spill the beans, and once in a blue moon. Proverbs are short phrases with a literal meaning that taps into a shared truth or imparts advice, such as a chain is only as strong as its weakest link, absence makes the heart grow fonder, and don’t bite off more than you can chew.