Use 'creaky' to describe sounds typically associated with age or lack of lubrication in objects. She slowly opened the creaky gate to enter the garden.
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Common Sounds
'Creaky' often refers to common household noises that may need fixing. Every night, the creaky stairs reminded him to get them repaired.
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Indicative of Age
'Creaky' suggests something is old and may evoke a feeling of nostalgia or the need for replacement. The creaky rocking chair was her grandmother's favorite.