Hers
Definition 1 of 1
Pro Tip 1/3
Possessive Pronoun
Use 'hers' to show that something is owned by or belongs to a specific female person mentioned earlier. Anna couldn't find her scarf, but I knew that the scarf on the chair was hers.
Pro Tip 2/3
No 'Her' Before
'Hers' is used alone without 'her'. Saying 'her hers' is incorrect because 'hers' already shows possession. That laptop is hers, not her sister's.
Pro Tip 3/3
Not Replaceable
'Hers' cannot be replaced with 'her' when indicating possession at the end of a sentence. Is this backpack her? Incorrect. Is this backpack hers? Correct.