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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.
the design of buildings or public spaces in a way which discourages people from touching, climbing or sitting on them …
to ask people to vote in order to decide an issue
a situation in which a country's armed forces are physically present in an area of conflict …
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Definition of decay from the online English dictionary from Macmillan Publishers Limited.