Excluding the hundreds of different dialects, there are about 46 main languages. However, there are probably still uncharted civilizations that have their own language.
Scientists have counted approx. 6500 languages, half of which are, however, threatened to die off soon, as they are no longer passed on. Not counted in above figure are pure sign-languages or...
Indo-European language have anywhere from 25 to 65 phonemes. (English has 40-48, depending on dialect; Most American English dialects have 44).Most Semitic languages have 22 consonants and 5 vowels...