THEAETETUS: Clearly the last is true.
STRANGER: I understand you to say that words which have a meaning when in sequence may be connected, but that words which have no meaning when in sequence cannot be connected?
THEAETETUS: What are you saying?
STRANGER: What I thought that you intended when you gave your assent; for there are two sorts of intimation of being which are given by the voice.
THEAETETUS: What are they?
STRANGER: One of them is called nouns, and the other verbs.
THEAETETUS: Describe them.
STRANGER: That which denotes action we call a verb.
THEAETETUS: True.
STRANGER: And the other, which is an articulate mark set on those who do the actions, we call a noun.