You're fluent in. At least a dozen for me, the most fluent in : English, French, Portuguese, Italian, Spanish, Tibetan, Mongolian, Chinese Mandarin, Cantonese, Japanese, Korean and German for me personally.
I was once moderately fluent in French because I was learning it in school for five years, but I never really used it once I graduated so I've basically become useless with the language now. Therefore these days I only speak one language. XD
I speak English and learned French in high school but did not become fluent. I spoke it very well and was advanced enough that I watched movies in French and my teacher gave me French novels to read. I've lost a lot of what I learned because I don't get the opportunity to speak it.
I started studying Spanish about a decade ago but my Spanish speaking friends wouldn't help me out by having conversations with me in the language.
Just English, Polish and Russian for me. I've got a decent enough vocabulary base in Kyrgyz, but I can't have have more than a simple conversation in it. Have mostly lost the Turkish and Spanish that I studied, unfortunately.
English and French, though like @Lämmchen my fluency in French is no longer anywhere near what it once was. (Which is one of the reasons I started a French language board on my Forums.) I know a few words in Japanese.