belt

• belt [countable]
• 1 a band of leather, cloth etc that you wear around your waist to hold up your clothes or for decoration:
• He unbuckled his leather belt.
• 2 a large area of land that has particular features or where particular people live:
• America's farming belt
• the green (=countryside) belt British English➔ green belt
• 3 a circular band of something such as rubber that connects or moves parts of a machine ➔ conveyor belt, fan belt
• 4

  below the belt

  informal unfair or cruel:
• That was a bit below the belt, Paul.
• The comments hit below the belt (=they were unfair or cruel).
• 5

  have/get something under your belt

   to have achieved something useful or important:
• a secretary with several years' experience under her belt
• 6

  belt and braces

  British English informal a belt and braces way of doing something is one in which you do more than necessary in order to make sure that it succeeds
• ➔ black belt, garter belt, seat belt, safety belt, suspender belt

  ; ➔ tighten your belt

  at tighten (6)

Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.