What is apostrofe?

An apostrophe is a punctuation mark that is used to show possession or to indicate the omission of letters in a contraction. In possessive forms, the apostrophe is placed before the s for singular nouns, and after the s for plural nouns. For example, "The dog's tail" or "The dogs' tails."

Apostrophes are also used in contractions to indicate the omission of one or more letters. For example, "it's" is a contraction of "it is", and "can't" is a contraction of "cannot".

It is important to use apostrophes correctly to avoid confusion in writing. Misplacing or omitting apostrophes can change the meaning of a sentence or make it grammatically incorrect.