round-off

[ round-awf, -of ]
/ ˈraʊndˌɔf, -ˌɒf /
Mathematics

adjective

of or relating to the act or process of rounding.

noun

an act or instance of rounding off decimal or fractional figures.

Origin of round-off

First recorded in 1945–50; noun use of verb phrase round off

Definition for round off (2 of 2)

Origin of round

1
1250–1300; (adj.) Middle English rond, round < Old French, stem of ront, earlier reont < Latin rotundus round, circular (see rotund); (noun) Middle English, partly derivative of the adj., partly < Old French rond, ronde (derivative of ront); (v.) Middle English, derivative of the adj.; (adv. and preposition) Middle English, apparently aphetic variant of around

Related forms

round·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for round off (1 of 2)

round off


verb (tr, adverb)

(often foll by with) to bring to a satisfactory conclusion; complete, esp agreeablywe rounded off the evening with a brandy
to make round or less jagged

British Dictionary definitions for round off (2 of 2)

Derived Forms

roundness, noun

Word Origin for round

C13: from Old French ront, from Latin rotundus round, from rota a wheel

xref

See around
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

Culture definitions for round off

round


A song that can be begun at different times by different singers, but with harmonious singing (see harmony) as the result. “Row, Row, Row Your Boat” is a round.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with round off (1 of 2)

round off


1

Change a number to the closest whole number or the closest multiple of 10. For example, Rounding it off, I expect the new school addition will cost a million dollars.

2

Also, round out. Finish, complete, especially in a neat or perfect way. For example, They rounded off the dinner with a magnificent liqueur, or That stamp rounded out his collection. [Mid-1700s; variant, mid-1800s] Also see round out.

Idioms and Phrases with round off (2 of 2)

round


In addition to the idioms beginning with round

  • round and round
  • round figures
  • round off
  • round on
  • round out
  • round peg in a square hole
  • round robin
  • round the bend
  • round trip
  • round up

also see:

  • all year round
  • bring around (round)
  • come around (round)
  • get around (round)
  • in round numbers
  • in the round
  • make the rounds
  • other way round
  • pull round
  • rally around

Also see underaround.

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