“But surely I feel justified when normally I use the word ‘red’ although I don't think of a def. while doing so.” Do you mean that whenever normally you use the word ‘red’ you have a particular feeling which you call a feeling of justification. I wonder if that is true. But true or not || anyhow by ‘justification’ I didn't mean a feeling. But I think I know what makes you say that on saying e.g. this chair || book is red you have a feeling of being justified in using the word. For you might ask: isn't there an obvious difference

between the case in which I use || apply || use a word in its well known meaning as when I say to someone ‘the sky is blue today’ & the case in which I apply || say any arbitrary word on such an occasion e.g. ‘the sky is moo’. In this case, you will say, I either know that I am just fixing || giving a meaning to the word ‘moo’ or else I shall feel that I have no justification whatever to use || there is no justification whatever for using the word. The word is just any word & not the appropriate word. I quite agree that there is a difference in experience between the cases of ‘using the name of the colour’, ‘giving a new name to the colour’ & ‘using any || some arbitrary word in the place of the name of the colour’. But that doesn't mean that it is correct to say that I have a feeling of appropriateness in the first case which is absent in the other third. “But ‘red’ somehow seems to us to fit this colour”. We certainly may be inclined to say this sentence on certain occasions but it would be wrong to say that therefore we had a feeling of fitting whenever ordinarily we said that something was red.

(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.