[ fahy-doh ]
See synonyms for FIDO on
  1. a system for evaporating the fog above airfield runways by the heat from burners.

Origin of FIDO

1940–45; f(og)i(nvestigation)d(ispersal)o(perations)

Words Nearby FIDO Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use FIDO in a sentence

  • FIDO bounded over the fields and chased the frightened partridges; Pensive soared in the air and sported with the light.

  • He would have swallowed him at one mouthful had not FIDO glided from his jaws, leaving one of his ears behind.

  • FIDO crept painfully to his feet, without daring to caress him, for he felt how much he was to blame.

  • Early in the morning, when dawn was scarcely breaking, the swallow began to twitter, and FIDO to pull the blankets.

  • He gave it its liberty, and ran to the beach for FIDO and Pensive, then plunged them both into the blessed fountain.