subsidence
US /səbˈsaɪ.dəns/
UK /səbˈsaɪ.dəns/
1.
the gradual caving in or sinking of an area of land
:
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The old house was damaged by land subsidence.
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Mining activities can lead to significant ground subsidence.
2.
the act or process of becoming less active or intense; abatement
:
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We observed a subsidence of the fever after the medication.
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There was a noticeable subsidence in the storm's intensity.