Sentence:  "I'll not," retorted "Teeter" Nelson, whose first name was Harry, but who had gained his <WSD>appellation</WSD> because of a habit he had of "teetering" on his tiptoes when reciting in class. "I've got Peaches all right," and there was a struggle between the two lads, one trying to throw a snowball, and the other trying to prevent him. 
Meaning of the word marked with <WSD> tags:  A name, title(,) or designation.