> phonemes (sounds the mouth makes) This isn't entirely correct. A distinct sound that the mouth makes is a "phone". A phoneme is almost always a group of seve

> phonemes (sounds the mouth makes) This isn't entirely correct. A distinct sound that the mouth makes is a "phone". A phoneme is almost always a group of several phones - allophones - that native language speakers perceive as a single sound. Another way to phrase it is that if you change one phoneme to another one, it makes a different word (possibly a non-existing one, but regardless the native speakers would consider it distinct), but changing from one phone to another doesn't change the word. For example, in English, the phoneme /t/ has allophones [t], [tʰ], [ɾ], or [ʔ] depending on context. OTOH [ɾ] is a distinct phoneme in Spanish, and [ʔ] is a distinct phoneme in Arabic. Unfortunately these two are often confused, so one should be careful with such counts and comparing them - it's not uncommon when people count phonemes in their native language, but phones in other languages (when those phones sound distinct to them). This can also vary significantly from dialect to dialect, since one very common thing in language evolution is for two similar phonemes to collapse into a single one while retaining the original distinction as allophones. For English, in particular, the number of phonemes varies a lot between American and British English (with the latter having more distinctions).