diamond
noun
[ ˈdʌɪ(ə)mənd ]
• a precious stone consisting of a clear and colourless crystalline form of pure carbon, the hardest naturally occurring substance.
• "a diamond ring"
• a figure with four straight sides of equal length forming two opposite acute angles and two opposite obtuse angles; a rhombus.
• "a sweater with a pale-blue diamond pattern"
Origin:
Middle English: from Old French diamant, from medieval Latin diamas, diamant-, variant of Latin adamans (see adamant).
