"That is all."
Hey there! I study russian at university (just using this course to boost my vocab). I think I can clear up this issue for you: Всё and все are technicly different words. Всё means everything and все means everyone. The confusing thing is that very often, russians do not write the accented ё but instead write е (mostly the accents are used for texts designed for children and foreigners). This is of course, fine for russians, but very confusing for those learning the language! In the cases where the accent affects the meaning of the word, as in всё/все, the context is usually enough to determine which word is meant. To add to the confusion, the accented ё is always stressed, whereas е can be stressed or un-stressed. Hope this helps!
It looks like I replied too quickly. According to this link and this link both всё and все can mean "all", but they're pronounced differently. They also seem to have different functions, so I think I'll let a Russian speaker answer this one...
Edit: (From below: "всё means everything or all, but все means everyone.")
I think this deserves further clarification... By itself всё means "everything" and by itself все means "everyone". They are pronouns and the pronunciation is indeed different (ё=yo, е=ye) . But both words can also mean "all" when used as adjectives. In this case they are really the same word, but with different endings to match the gender of the noun being modified. Consider the following examples... весь день = all day (masculine), вся природа = all nature (feminine), всё утро = all morning (neuter), все мальчики/девушки = all boys/girls (plural). Hope that helps!
It's the same as with а/я, о/ё, and у/ю. Е/е is the "soft" version, which palatalizes the consonant before it and adds a ghost of a "y-" sound before the vowel. Э is the "hard" version, with no palatalization, pronounced like the English "e" in "net/bet/let/set/"etc.
Dunno if this will help, but:
Нэт would be pronounced the same way as "net" in English.
Нет is the famous "nyet" that all Russian speakers know and love.