Plural for "photo"?

grammatical-number orthography american-english british-english greek

Solution 1:

Photoes seems to have peaked in the 1950s and the usage of photo vs photoes nowadays is about ten to one according to Google's Ngram. I am a native speaker of American English and I suspect photoes is significantly more common in non-US usage. It just looks like a spelling error to my American eyes.

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