Subject: Star Trek Language
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Posted on: 2013-05-07 18:10:00 UTC
Most Federation matters are dealt with in English after it became the dominant human language for some reason, but the other languages still exist. Captain Picard knows French, for instance. Even the other alien races have multiple languages sometimes, for that matter. I remember someone saying that Romulans had three languages, and the Xindi had at least two.
I've never heard of a Federation Standard, but I'd guess that if it's the diplomacy-based language its name implies that it is, it would probably be modified English to make it more convenient for alien speakers. That's just a guess, though, because like I said, I don't know where that term came from.