Cavity

usgb/ˈkævəti/Volume
Left Definition 1 of 4Right
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Metaphorical UsePlay
Sometimes 'cavity' is used metaphorically to express emptiness in non-physical things. SlideThe book left a cavity in her heart.
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Negative ConnotationPlay
'Cavity' often implies a problem or a deficiency needing to be addressed. SlideThe engineers found a cavity in the spacecraft's insulation.
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Physical StructuresPlay
In construction or architecture, 'cavity' refers to a designed gap within walls. SlideThis building has cavity walls for better insulation.