Dictionary.com

forty

[ fawr-tee ]
/ ˈfɔr ti /
Save This Word!

noun, plural for·ties.
a cardinal number, ten times four.
a symbol for this number, as 40 or XL or XXXX.
a set of this many persons or things.
forties, the numbers, years, degrees, or the like, from 40 through 49, as in referring to numbered streets, indicating the years of a lifetime or of a century, or degrees of temperature: His office is in the West Forties. Her parents are in their forties. The temperature will be in the forties.
adjective
amounting to 40 in number.
QUIZ
TAKE JOY IN ACING THIS QUIZ ON “PRIDE” SYNONYMS
Hold your head up high as you embark on this quiz that explores some of the synonyms and meanings of “pride.”
Question 1 of 7
What does "dignity" mean?

Origin of forty

before 950; Middle English fourti,Old English fēowertig (cognate with Old Frisian fiuwertich,Old High German fiorzug,German vierzig). See four, -ty1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use forty in a sentence

British Dictionary definitions for forty

forty
/ (ˈfɔːtɪ) /

noun plural -ties
the cardinal number that is the product of ten and fourSee also number (def. 1)
a numeral, 40, XL, etc, representing this number
something representing, represented by, or consisting of 40 units
determiner
  1. amounting to fortyforty thieves
  2. (as pronoun)there were forty in the herd

Word Origin for forty

Old English fēowertig
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
FEEDBACK