#polyglot character

Apparently, according to Nightwing #54, he can speak 12, so I went on a little quest to see just how many I could identify.

Starting off with The Essential Batman Encyclopedia, the entry for Dick Grayson lists him as being trained in French, Spanish, Russian, Japanese, Mandarin, and Cantonese with having some proficiency in an unknown Romani dialect. Given there are multiple examples of him speaking these languages throughout the comics, I am inclined to trust this claim. To start, we've got several examples of French (Gotham Knights #14, Detective Comics Annual #12, Nightwing #73, Grayson #10-- also featuring Spanish)

In Grayson #1 he speaks Russian only briefly, but in Detective Comics #36 he speaks it throughout.

As far as the Chinese languages go, while I believe Dick can speak Mandarin and/or Cantonese fairly well (Batman/Superman World's Finest #3), his Hanzi recognition and literacy could use some work.

Similarly, when the Titans head off to Japan in Titans Annual #1, we have Nightwing speaking Japanese in battle; however, when it comes to the prospective job of being a manga translator in Nightwing #125, he claims he doesn't know Japanese, which leads me to believe he is only proficient in speaking Japanese/Chinese and struggles with the writing systems.

So what about the languages not covered in the encyclopedia? To start, we have another romance language: Italian (Nightwing #72).

Followed by some alleged German (Nightwing #51, JLA #44)

And conversations in Farsi (Robin #175)

While I've seen some Tumblr and Reddit posts claim he knows Kikuyu, The Power Company: Manhunter #1 only says he "brushed up" on his Kikuyu before going to Kenya, so it is unknown how much of the language he actually speaks, but to me it doesn't seem likely to be a lot.

He also, to some unknown degree, speaks Tamaranean-- at least enough to hack into an alien computer (Action Comics #842).

As far as unspoken languages go, Dick is fluent in ASL, which is proven numerous times when he communicates with Jericho (New Teen Titans 1984).

And lastly, the two languages that remain rather uncertain are Romani and Cant-- largely due to the nature of the languages themselves and their representation in comics. "Romani," for instance, has several different dialects, and when Devin Grayson introduced it for Dick (Gotham Knights #20-21, Nightwing #91), she never specified which, and based on the lines she wrote, her research into the language was questionable at best. Writers since have recognized Dick's Romani heritage, but have not otherwise suggested he retained much of the language to be considered fluent.

Cant is an even wider term than Romani and can be seen as more of jargon for a particular language than a language itself, sometimes even being called a "pseudo-language." The colloquial term for American circus cant is Carny, or "Carny speak" as Boston Brand puts it in Batman: The Brave and the Bold #14 when he and Nightwing encounter a kid who speaks it.

So... this leaves us with 11 languages Dick has notable proficiency in: English, French, Spanish, Italian, Russian, German, Japanese, Mandarin, Cantonese, Farsi, and ASL. And ~3 languages he has unknown proficiency in: Tamaranean, Kikuyu, Romani, and Carny/Cant (if you want to count it).

Maybe memory-loss Dick was including either Tamaranean or Kikuyu in that count from Nightwing #54, or maybe he knows some other language we haven't seen yet. Given how close the family is to the Al Ghuls, I personally think it would be cool if one of them was Arabic.