- The definition of thousandfold is something that is a thousand times more than something else.
An example of thousandfold is the noise level of 1,000 people as compared to one person; a thousandfold increase.
thousandfold definition by Webster's New World
having a thousand times as much or as many
Origin: thousand plush -fold
a thousand times as much or as many
a number or an amount a thousand times as great