›a measurement of how fast something increases in size during a particular period: Developing countries report a high economic growth rate of 6% this year.The economy's growth rate has slowed from 3% to 2.5%.The agricultural sector has slowed from a growth rate of 7% to 3%.annual/quarterly/year-on-year growth rateThe fund has achieved an average annual growth rate of 13.7% over ten years.the GDP/job/earnings growth ratea fast/healthy/high growth ratea low/slow/weak growth ratea sustainable/long-term growth rate