—Despite the appearance of the word in the case, yes. It appears significant because you have now met it in what appear to be several different environments. You forget that all these environments exist only in Diana Hunter’s consciousness. She chose the word, and it was subsequently selected at random—a single coincidence. With each iteration of it inside the psychodrama, however, it accrues greater weight for you. It is the disadvantage of human pattern recognition, exacerbated by the fact that you designate it an unusual word. However, there are half a million words in the English language and an extensive vocabulary includes perhaps thirty-five thousand of them, meaning that there are more unusual words in English than commonplace ones by a factor of fourteen. In fact, "gnomon" is common in several specialist areas, meaning that its selection by Hunter is within the bounds of ordinary behaviour. The practical taxonomy in use within linguistics is more complex, but for the sake of argument: if one were grading rarity on a scale of one to five, it would be a three. "Xyster" and "mollag" would be fours, "Brummagem" a five.