In an ambiguous pronoun reference, the pronoun could refer to more than one noun.
AMBIGUOUS |
[Was the glass dirty? Or was the shelf dirty? The revision makes it clear.] |
In a vague pronoun reference, the pronoun does not refer clearly to any particular person, place, or thing. To correct a vague pronoun reference, use a more specific noun instead of the pronoun.
VAGUE |
[Who told Tom the clinic was closed? The revision makes it clear.] |
REPETITIOUS PRONOUN REFERENCE
In a repetitious pronoun reference, the pronoun repeats a reference to a noun rather than replacing the noun.