Synonyms for INCREASE: expand, boost, augment, raise, multiply, extend, enhance, maximize; Antonyms of INCREASE: reduce, decrease, diminish, lessen, lower, dwindle. The percentage increase calculator is a useful tool for calculating the increase from one value to another in terms of a percentage of the original amount. Before using this calculator, it may be beneficial for you to understand how to calculate the percent increase using the percent increase formula. Use this percentage increase calculator to find the percent change between two values, calculate increases or decreases, and see the working. Percentage increase calculator finds the increase from one value to another as a percentage of the first value. Shows you how to find percentage increase with percent increase formula. Define increase. increase synonyms, increase pronunciation, increase translation, English dictionary definition of increase. v. in·creased , in·creas·ing , in. What does increase mean? Learn its real-life meaning, usage, examples, and differences across contexts with simple explanations. increase vb /ɪnˈkriːs/ to make or become greater in size, degree, frequency, etc; grow or expand n /ˈɪnkriːs/ the act of increasing; augmentation the amount by which something increases on the increase ⇒ increasing, esp becoming more frequent Etymology: 14th Century: from Old French encreistre, from Latin incrēscere, from in-2 + crēscere to grow inˈcreasable adj increasedly. INCREASE definition: 1. to become larger in amount or size, or to make something do this: 2. a rise in the amount or…. Learn more. INCREASE meaning: 1. to become larger in amount or size, or to make something do this: 2. a rise in the amount or…. Learn more. The meaning of INCREASE is to become progressively greater (as in size, amount, number, or intensity). How to use increase in a sentence. Synonym Discussion of Increase. Want to increase your writing impact? Discover 100 vivid alternatives to “increase” for emails, essays, and everyday English—clear, varied, and precise.