[ reg-yuh-ler ]
/ ˈrɛg yə lər /



Origin of regular

1350–1400; Middle English reguler (adj.) < Middle French < Late Latin rēgulāris. See regula, -ar1

Related forms

Can be confused

regular routine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for regular

British Dictionary definitions for regular


/ (ˈrɛɡjʊlə) /



Derived Forms

regularity, nounregularly, adverb

Word Origin for regular

C14: from Old French reguler, from Latin rēgulāris of a bar of wood or metal, from rēgula ruler, model
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

Science definitions for regular


[ rĕgyə-lər ]

Having all sides or faces equal. For example, a square is a regular polygon, and a cube is a regular polyhedron.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.