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noun

fido

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Fido (noun) means In coin collecting: a coin that was struck incorrectly at the mint, making it unusual and often more valuable to collectors. Example: “The dealer paid extra for the fido because of its off-center strike.”

noun
1
In coin collecting: a coin that was struck incorrectly at the mint, making it unusual and often more valuable to collectors.
"The dealer paid extra for the fido because of its off-center strike."

How to use fido

Learner’s notes

In plain EnglishA mis-struck or flawed coin that collectors prize precisely because of its defect.

Memory tip

This is a niche numismatics term, not the classic dog name — context makes the difference clear.

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Word forms

Plural
fidos
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Fill the gap

Can you complete this real example?

The dealer paid extra for the _____ because of its off-center strike.

Etymology

From an acronym for "freaks, irregulars, defects, oddities," coined by coin collectors in the 1960s.

· First attested 1960

Class of 1960 fido joined the language around 1960.
See the full Class of 1960 →

Rhymes for fido

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Frequently asked questions

What does “fido” mean?
The word “fido” means in coin collecting: a coin that was struck incorrectly at the mint, making it unusual and often more valuable to collectors. In plain terms, a mis-struck or flawed coin that collectors prize precisely because of its defect.
How do you use “fido” in a sentence?
Here is “fido” used in a sentence: “The dealer paid extra for the fido because of its off-center strike.”
What part of speech is “fido”?
“Fido” is a noun.
Where does the word “fido” come from?
The word “fido” dates back to around 1960. From an acronym for "freaks, irregulars, defects, oddities," coined by coin collectors in the 1960s.