Definition of "cavalry" in English

noun

1. (military, usually historical, uncountable) The military arm of service that fights while riding horses.

2. (military, countable) An individual unit of this arm of service.

3. (military, countable) The branch of the military transported by fast light vehicles, also known as mechanized cavalry.

4. (figurative) A source of rescue, especially in an emergency.

   • call in the cavalry