verb (used with object), rimmed, rim·ming.

Origin of rim

before 1150; Middle English; Old English -rima (in compounds); cognate with Old Norse rimi raised strip of land, ridge
Related formsrim·less, adjective

Synonyms for rim

1. lip, verge. Rim, brim refer to the boundary of a circular or curved area. A rim is a line or surface bounding such an area; an edge or border: the rim of a glass. Brim usually means the inside of the rim, at the top of a hollow object (except of a hat), and is used particularly when the object contains something: The cup was filled to the brim.

Antonyms for rim

1. center.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rim

Contemporary Examples of rim

Historical Examples of rim

  • The ball of red fire in the west was half below the rim of the distant peak.

    The Spenders

    Harry Leon Wilson

  • And almost immediately the rim of the sun showed above the horizon.

    The Leopard Woman

    Stewart Edward White

  • We stood now on the rim of the crater, looking straight into the inferno.

    The Underdog

    F. Hopkinson Smith

  • The laboratory was on the Northern rim of the field, a ten-minute drive from the auditorium.

  • In another moment they were riding rapidly toward the rim of the crater.

    Louisiana Lou

    William West Winter

British Dictionary definitions for rim



the raised edge of an object, esp of something more or less circular such as a cup or crater
the peripheral part of a wheel, to which the tyre is attached
basketball the hoop from which the net is suspended

verb rims, rimming or rimmed (tr)

to put a rim on (a pot, cup, wheel, etc)
slang to lick, kiss, or suck the anus of (one's sexual partner)
ball games (of a ball) to run around the edge of (a hole, basket, etc)

Word Origin for rim

Old English rima; related to Old Saxon rimi, Old Norse rimi ridge


abbreviation for

Mauritania (international car registration)

Word Origin for RIM

From République Islamique de Mauritanie
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for rim

Old English rima "edge, border, verge, coast," as in særima "seashore," literally "rim of the sea," and dægrima "dawn," literally "rim of the day." Related to Old Norse rime, rimi "a raised strip of land, ridge," Old Frisian rim "edge," but with no other known cognates. The snare drummer's rim shot (striking the rim and the head at once) is recorded from 1934.


1794, "to fit with a rim," from rim (n.). Sexual senses from 1920s, some perhaps influenced by ream (v.). Related: Rimmed; rimming.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for rim




The border, edge, or margin of an organ or a part.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.