Other forms: photos
A photo is an image caught by a camera. Take a photo, a family photo, photo album.
It is short for photograph and entirely standard, which is unusual — most such shortenings stay informal. A photo finish is one decided by the camera, and the phrase is used of any close contest. Note that photograph means drawing with light, from the Greek for light and writing.
1nounphotoAn image caught by a camera.
“Can you take a photo of us in front of the fountain?”
photo is an image.
Also accepted in games: photograph, picture
Clipping of photograph.
Etymology from Wiktionary, CC BY-SA