Definition of thin air in English:

thin air

Used to refer to the state of being invisible or non-existent: she just vanished into thin air
More example sentences
  • Immorality prevails as sympathy for the unfortunate diminishes into thin air.
  • We've seen in the collapse of many technology companies that figures were plucked out of thin air.
  • Teaching unions have also joined force to ask how millions of pounds have seemingly disappeared into thin air.
See parent entry: thin

Definition of thin air in:

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Word of the day ween
Pronunciation: wiːn
verb
be of the opinion; think or suppose