- reduction or diminution of activity, prevalence or quantity
The aircraft went into a sudden decline before the pilot regained control.
uncountable
- distance through which something drops, or falls below a certain level
Put three drops of oil into the mixture.
- A vertical (or nearly vertical) rock face
- The act of slipping, especially from a secure location
Supply-chain problems led to a slippage in production last week.
uncountable
- sudden downward slope
There has been an unexplained drop-off in sales this quarter.