leaky or leaking as in leaky faucet or leaking faucet.
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how do i fix a leaky sink
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The Leaky Establishment was created in 1984.
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No, "leaky" is an adjective that describes something that is allowing liquid or gas to escape through a hole or crack. An adverb modifies a verb, adjective, or another adverb, but "leaky" is used to describe a noun.