How does this dictionary entry differ from those of earlier dictionaries? it provides more than one definition for the word. it uses the word in a sentence. it reveals the word’s root or derivative. it includes published examples of the word’s use.

The correct answer is "It includes published examples of the word's use". The entry dictionaries includes examples of the word's use, the word or phrase broken into syllables, the word or phrase with the pronunciation indicated through the use of diacritical marks, the part or parts of speech the word functions, related forms of the word, such as the plural form of nouns and the past tense of verbs and the definition or definitions of the word or phrase.  

the narrator is saying that the old lady made her feel uncomfortable. you know this because they say "i found that rather irksome", "perhaps it was her being so upright and trim", and "i don't think it was that, because i thought that quaintly pleasant." hope this !