Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “harden”

harden

verb [I/T]  /ˈhɑr·dən/ us  

harden verb [I/T] (MAKE SEVERE)

to make or become stronger or more severe: [I] As the war progressed, attitudes on both sides hardened.

harden verb [I/T] (BECOME SOLID)

to become firm or solid, or to cause something to become firm or solid: [I] In a few hours the cement will harden.
(Definition of harden from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of harden?
Add Cambridge dictionaries to your browser to your website

Definitions of “harden” in other dictionaries

Word of the Day

bright spark

a person who is intelligent, and full of energy and enthusiasm

Word of the Day

Highly delighted, bitterly disappointed, ridiculously cheap: adverbs for emphasis.

by Liz Walter,
October 22, 2014
We often make adjectives stronger by putting an adverb in front of them. The most common ones are very and, for a stronger meaning, extremely: He was very pleased. The ship is extremely large. However, we don’t use very or extremely for adjectives that already have a strong meaning, for example fantastic,

Read More 

life tracking noun

October 20, 2014
the use of one or more devices or apps to monitor health, exercise, how time is spent, etc.

Read More