The teaching of language by pointing cannot explain learning to count. The shopkeeper has to be able to find the apples and to know to put them in a sack, accept money in exchange for them. It would be hard to explain all of this within the Augustinian picture of language. . That philosophical concept of meaning has its place in a primitive idea of the way language functions. But one can also say that it is the idea of a language more primitive than ours.
Every word has a meaning.
The meaning is correlated with the word. It is the object for which the word stands. This concept of meaning, Wittgensein says, has its place in helping us understand primitive language, language more primitive than English, German, French, etc. It is also the case, Wittgenstein explains, that there are regions of our developed language in which language works just as Augustine portrays it. B has to pass the stones, and that in the order in which A needs them.