hardening

[ hahr-dn-ing ]
/ ˈhɑr dn ɪŋ /

noun

a material that hardens another, as an alloy added to iron to make steel.
the process of becoming hard or rigid.

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Origin of hardening

First recorded in 1620–30; harden + -ing1

Definition for hardening (2 of 2)

harden
[ hahr-dn ]
/ ˈhɑr dn /

verb (used with object)

verb (used without object)

Origin of harden

Middle English word dating back to 1150–1200; see origin at hard, -en1

OTHER WORDS FROM harden

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for hardening

British Dictionary definitions for hardening (1 of 3)

hardening
/ (ˈhɑːdənɪŋ) /

noun

the act or process of becoming or making hard
a substance added to another substance or material to make it harder

British Dictionary definitions for hardening (2 of 3)

harden1
/ (ˈhɑːdən) /

verb

to make or become hard or harder; freeze, stiffen, or set
to make or become more hardy, tough, or unfeeling
to make or become stronger or firmerthey hardened defences
to make or become more resolute or sethardened in his resolve
(intr) commerce
  1. (of prices, a market, etc) to cease to fluctuate
  2. (of price) to rise higher

British Dictionary definitions for hardening (3 of 3)

harden2
/ (ˈhɑːdən) /

noun

a rough fabric made from hards
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