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Bacteria cause the decay of dead plants and animals.
Sweets cause tooth decay.
The farmhouse fell into disuse and decay.
the social and moral decay of the country
This is the British English definition of decay. View American English definition of decay.
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View the pronunciation for decay.
used with other nouns to describe the unexpected and often unwanted effects of a particular situation or trend
the bone at the front of your lower leg, between your knee and your ankle. A more usual word is...
a woman in middle age who has to juggle caring for teenage children and ageing parents with a career
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Definition of decay from the online English dictionary from Macmillan Publishers Limited.