fiftyfold
Fiftyfold is an English expression used to indicate a multiplication by fifty relative to a baseline. It can function as an adjective or as an adverbial modifier, as in “the population increased fiftyfold” or “a fiftyfold increase in yield.” It denotes a ratio, not a unit of measurement.
The term is formed from the number fifty and the noun fold, which has long been used
Common contexts include science, economics, and statistics, where precise multiplicative changes are described succinctly. For example,
Usage notes: fiftyfold is not a unit of measurement but a descriptive ratio. Style guides differ on