deflation

definition: the act of letting the air out of something
example:
speech part: noun
synonyms:
definition: a contraction of economic activity resulting in a decline of prices
example:
speech part: noun
synonyms:
definition: (geology) the erosion of soil as a consequence of sand and dust and loose rocks being removed by the wind
example: a constant deflation of the desert landscape
speech part: noun
synonyms:

How deflation is being used?