Meaning of block and tackle | Babel Free

Definitions

1. A system in which a rope, cable, or chain (the tackle) is passed over pulleys enclosed in two (or rarely more) blocks, one fixed and one attached to a load, which is used to gain mechanical advantage to lift or pull heavy loads.
2. The underwear combination of stockings worn with a suspender belt.
   euphemistic

Equivalents

CEFR level