Wisdom is knowing where the knowledge stops. Wisdom is knowing what you don't know. Shannon considered a closed character set. Language is an open system. New experience produces a need to capsulize reference to the experience into a pointer, ie. a word.
Words are arbitrary but consensually agreed upon by members of the shared experience.
As similar experiences collect, the group begins to aggregate and descriminate. Concepts are established. This is connected to that. This is like that. This is different from that.