Englishfor English speakers
weak
Adjective
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Weak is used to describe something that does not have a lot of strength.
The child was too weak to move the boulder.
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Something that is weak does not have a strong taste.
This tea tastes weak and watery. Do you have anything stronger?
decay
Verb
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If something decays it rots.
The body decayed.
My teeth were decaying because I ate too much sugar.
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If something decays it gets weaker and is destroyed slowly.
Their empire decayed because the leaders were fools.
decay
Noun
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Decay is the act of decaying.
Nothing could stop the decay at the time.
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Decay is material (stuff) that is decaying or has decayed.
My teeth were full of decay.