Secondary sense and ‘what they have in common’
Family resemblance and other relations Fundamental to the operation of our language is the fact that a given word may be used to describe a variety of objects or qualities. The word ‘game’, for example, is applied to a great variety of games. It is natural to suppose that there must be a unity underlying the diversity; that all games must have something in common in virtue of which they are called ‘games’, and similarly with other words. Otherwise, we might think, there would be nothing to hold the different occurrences of such words together and language would be reduced to anarchy.