Something like this…
1. Person A can’t teach person B what word W means, if A doesn’t know what W means.
2. One can’t know what ‘consciousness’ means if one is not conscious.
From 1 and 2 =>
3.Person A can’t teach person B what ‘consciousness’ means, if A isn’t conscious.
4.I learned word ‘conscious’ from the people in the linguistic community.
From 4 and 3 =>
5. People in the linguistic community are conscious.
OK, now you know… you are conscious.