in·crease • v. / inˈkrēs/ become or make greater in size, amount, intensity, or degree: [intr.] car use is increasing at an alarming rate | [tr.] we are aiming to increase awareness of social issues | [as adj.] (increasing) the increasing numbers of students. • n. / ˈinˌkrēs/ an instance of growing or making greater: an increase from sixteen to eighteen clubs| some increase in inflation. PHRASES: on the increase becoming greater, more common, or more frequent.DERIVATIVES: in·creas·a·ble adj.in·creas·ing·ly adv. increasingly, attention is paid to health and lifestyle | an increasingly difficult situation.