When the boy or grown-up learns learns what one might call special technical languages, e.g., the use of charts and diagrams, descriptive geometry, chemical symbolism, etc., he learns more language-games. (Remark: The picture we have of the language of the grown-up is that of a nebulous mass of language, his mother tongue, surrounded by discreet and more or less clear cut language games, the technical languages.)
6). Asking for the name: we introduce new forms of building stones. B points to one of them & asks, “What is this?”; A answers, “This is a …”. Later on A calls out this new word, say “arch”, & B brings the stone. The words, “This is a …” together with the pointing gesture we shall call ostensive explanation or ostensive definition. In case 6) a generic name was explained, in actual fact, the name of a shape. But we can ask analogously for the proper name of a particular object, for the name of a colour, of a

numeral
number

, of a direction.

(2015–) Wittgenstein Source Bergen Nachlass Edition (WS-BNE). Edited by the Wittgenstein Archives at the University of Bergen under the direction of Alois Pichler. In: Wittgenstein Source, curated by Alois Pichler (2009–) and Joseph Wang-Kathrein (2020–). (N) Bergen: WAB.