What is you have in a apostrophe?

Answer 1

The apostrophe (', although often rendered as '), is a punctuation mark, and sometimes a diacritical mark, in languages that use the Latin alphabet or certain other alphabets. In English, it serves three purposes:[1]

• The marking of the omission of one or more letters (as in the contraction of do not to don't).
• The marking of possessive case (as in the eagle's feathers, or in one month's time).
• The marking by some as plural of written items that are not words established in English orthography(as in P's and Q's). (This is considered incorrect by others; see Use in forming certain plurals. The use of the apostrophe to form plurals of proper words, as in apple's, banana's, etc., is universally considered incorrect.)