lemon
US /ˈlem.ən/
UK /ˈlem.ən/

1.
a pale yellow oval citrus fruit with thick skin and fragrant, acidic juice
:
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She squeezed a lemon into her tea.
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This cake has a strong lemon flavor.
2.
a person or thing that proves to be unsatisfactory, disappointing, or defective
:
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I bought a used car, and it turned out to be a complete lemon.
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The new software update was a real lemon; it crashed my computer.
1.
pale yellow
:
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The walls were painted a soft lemon color.
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She wore a beautiful dress in a vibrant lemon shade.