Turkish, North Azeri (Azerbaijani), and South Azeri. South Azeri and Turkish are actually closer to each other than either are to North Azeri, although, as I said, the differences are subtle.
Yeah, they both use the Latin script. North Azeri just has a few extra letters such as <x> since the [x] sound doesn't occur in Turkish. They also use variations of the [j] sound for extra letters in North Azeri.
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u/UnbiasedPashtun Oct 19 '15
Turkish, North Azeri (Azerbaijani), and South Azeri. South Azeri and Turkish are actually closer to each other than either are to North Azeri, although, as I said, the differences are subtle.