verb (used with object)

verb (used without object)

Nearby words

  1. looney,
  2. loonie,
  3. loony,
  4. loony bin,
  5. loony tunes,
  6. loop aerial,
  7. loop diuretic,
  8. loop knot,
  9. loop of henle,
  10. loop of spinal nerves


    in/out of the loop, included in or excluded from a group of people who receive the latest information about something: She’s often out of the loop on policy decisions.
    throw/knock for a loop, to astonish or upset: Her quitting the project really threw me for a loop.

Origin of loop

1350–1400; Middle English loupe loop of cloth, perhaps < Scots Gaelic lub loop, bend

Can be confusedloop loupe

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

British Dictionary definitions for out of the loop




the round or oval shape formed by a line, string, etc, that curves around to cross itself
any round or oval-shaped thing that is closed or nearly closed
a piece of material, such as string, curved round and fastened to form a ring or handle for carrying by
an intrauterine contraceptive device in the shape of a loop
  1. a closed electric or magnetic circuit through which a signal can circulate
  2. short for loop aerial
a flight manoeuvre in which an aircraft flies one complete circle in the vertical plane
Also called: loop line mainly British a railway branch line which leaves the main line and rejoins it after a short distance
maths physics a closed curve on a graphhysteresis loop
another name for antinode
  1. the most common basic pattern of the human fingerprint, formed by several sharply rising U-shaped ridgesCompare arch 1 (def. 4b), whorl (def. 3)
  2. a bend in a tubular structure, such as the U-shaped curve in a kidney tubule (Henle's loop or loop of Henle)
computing a series of instructions in a program, performed repeatedly until some specified condition is satisfied
skating a jump in which the skater takes off from a back outside edge, makes one, two, or three turns in the air, and lands on the same back outside edge
a group of people to whom information is circulated (esp in the phrases in or out of the loop)


(tr) to make a loop in or of (a line, string, etc)
(tr) to fasten or encircle with a loop or something like a loop
Also: loop the loop to cause (an aircraft) to perform a loop or (of an aircraft) to perform a loop
(intr) to move in loops or in a path like a loop

Word Origin for loop

C14: loupe, origin unknown




an archaic word for loophole

Word Origin for loop

C14: perhaps related to Middle Dutch lupen to watch, peer

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 out of the loop
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for out of the loop




A curve or bend in a cord or other cylindrical body, forming an oval or circular ring.
A type of loop-shaped intrauterine device.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Idioms and Phrases with out of the loop

out of the loop

see under in the loop.


see in the loop; knock for a loop.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.