👉 An apostrophe in a sentence is an addition of an apostrophe to indicate possession. It is used to denote a possessive pronoun, a noun that refers back to itself. For example: 1. "My sister's a big fan of sushi." 2. "She always says 'I'll buy you lunch if you help me with the homework.'" In this sentence, the apostrophe at the end of "sushi" is used as an apostrophe to indicate possession because it refers back
