Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “diamond”

See all translations

diamond

noun uk   /ˈdaɪə.mənd/ us  

diamond noun (STONE)

B2 [C or U] a transparent, extremely hard precious stone that is used in jewellery, and in industry for cutting hard things: The tiara was set with diamonds and rubies. a diamond ring/necklace He had worked in the diamond mines of South Africa. diamond-tipped saw bladesdiamonds [plural noun] jewellery made from diamonds: Shall I wear the diamonds or the pearls with this dress?
More examples

diamond noun (SHAPE)

B2 [C or U] a shape with four straight sides of equal length, forming two opposite angles that are wide and two that are narrow: Joe's socks had diamond patterns on them. [C] the square part of a field on which baseball is played, surrounded by the four bases, or the whole field on which the game is played

diamond noun (CARDS)

diamonds [plural or U] one of the four suits in playing cards, shown by one or more red symbols in the shape of a diamond: the six/jack of diamonds [C] a playing card from the suit of diamonds: She played a diamond.
(Definition of diamond from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of diamond?
Add Cambridge dictionaries to your browser to your website

Definitions of “diamond” in other dictionaries

Word of the Day

thug

a man who acts violently, especially to commit a crime

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

crossfit noun

March 23, 2015
high-intensity strength training Two women in strappy dresses discussed how much weight they could snatch

Read More