English Explanatory Dictionary

Fido

English dictionary entry

Meanings

name
  1. A stereotypical given name for a dog.
  2. Clipping of FidoNet.
noun
  1. A coin that is defective, having been incorrectly minted, often prized by collectors.
noun
  1. Acronym of flight dynamics officer.
name
  1. Initialism of Fog Investigation and Dispersal Operation.
  2. Initialism of Fast IDentity Online (Alliance), an industry association launched to develop and promote authentication standards.

Pronunciation

/ˈfaɪ.dəʊ/ /ˈfaɪ.doʊ/

Word forms

Fido fidos FDO

Etymology

From Spanish or Italian fido from Latin fīdus (“faithful”). Popularly claimed to be directly from Latin fīdō (“to trust, rely on”) instead of the Romance intermediary, but this might be folk etymology. The stereotypical dog's name is evidently very old; a newspaper from 1760 cites, "[a] small white Greyhound with a Collar, answers to the Name of Fido."

Related words

Rex Rover Fluffy
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