- 1[intransitive] + adv./prep. (especially British English) to put your feet down noisily and heavily as you walk The children clumped down the stairs.
- 2[intransitive, transitive] clump (together) | clump A and B (together) to come together or be brought together to form a tight group Galaxies tend to clump together in clusters. Word Origin Middle English (denoting a heap or lump): partly imitative, reinforced by Middle Low German klumpe and Middle Dutch klompe; related to club ‘to hit someone with a stick or heavy object’.
BrE BrE//klʌmp//; NAmE NAmE//klʌmp//Verb Forms present simple I / you / we / they clump
BrE BrE//klʌmp//; NAmE NAmE//klʌmp//he / she / it clumps
BrE BrE//klʌmps//; NAmE NAmE//klʌmps//past simple clumped
BrE BrE//klʌmpt//; NAmE NAmE//klʌmpt//past participle clumped
BrE BrE//klʌmpt//; NAmE NAmE//klʌmpt//-ing form clumping
BrE BrE//ˈklʌmpɪŋ//; NAmE NAmE//ˈklʌmpɪŋ//