Simple past tense and past participle of caption.(verb)
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Use "captioned" in a sentence
"The South China Morning Post printed a picture of President Hu Tuesday with his name captioned in Chinese characters as Hu Jia, a Chinese activist serving 3.5 years in jail for subversion."
"It included a photo of a "No yuppies" tag captioned "Despite the bounty, free speech still reigns in the 47 Ward.""
"but Hulu does not air my favourite TV shows, I have to go to these websites and then their episodes aren't closed captioned, which is frustrating."