diamond · noun /ˈdɑɪ.mənd/
diamond (STONE)
B2 C or U an extremely hard valuable stone which is used in jewelry, and in industry for cutting hard things
Dictionary examples:
a diamond ring/necklace
He had worked in the diamond mines of South Africa.
Learner example:
She found a gorgeous diamond ring on her finger. (First Certificate in English; B2; Japanese)
diamond (SHAPE)
B2 C a shape with four straight sides of equal length, forming two opposite angles which are wide and two which are narrow
Dictionary example:
Joe's socks had diamond patterns on them.
