1 diamond /ˈdaɪmənd/ noun
plural diamonds
1 diamond
plural diamonds
Learner's definition of DIAMOND
: a very hard usually colorless stone that is a form of carbon and is used especially in jewelry
often used before another noun see color picture on this page
[count] : a shape that is formed by four equal straight lines and that has two opposite angles that are smaller than a right angle and two opposite angles that are larger than a right angle compare square
[count] : a playing card that is marked with a red diamond shape see picture at playing card
diamonds [plural] : the suit in a deck of playing cards that is marked by red diamond shapes compare club, heart, spade
: the part of a baseball field that includes the area within and around the three bases and home plate : infield
: the entire playing field in baseball
2 diamond /ˈdaɪmənd/ adjective
2 diamond
Learner's definition of DIAMOND
always used before a noun
: of or relating to the 60th or 75th anniversary of an important event (such as a marriage)
◊ It is more common for diamond to refer to the 60th anniversary of something.
compare golden, silver