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NAmE//dɪˈkris//, NAmE//ˈdikris//
[intransitive, transitive]Verb Forms present simple I / you / we / they decrease he / she / it decreases
past simple decreased
-ing form decreasing
Check pronunciation: decrease
Definition of decrease verb from the Oxford Advanced American Dictionary
to become or make something become smaller in size, number, etc. decrease (from something) (to something) The number of new students decreased from 210 to 160 this year. a decreasing population Donations have decreased significantly over the past few years. decrease by something The price of wheat has decreased by 5%. decrease in something This species of bird is decreasing in numbers every year. decrease something People should decrease the amount of fat they eat. opposite increase