What does "apostrophe" mean?

Apostrophe: (Gram.) The contraction of a word by the omission of a letter or letters, which omission is marked by the character ['] placed where the letter or letters would have been; as, call'd for called.

Additional senses

  1. 2.The mark ['] used to denote that a word is contracted (as in ne'er for never, can't for can not), and as sign of the possessive, singular and plural; as, a boy's hat, boys' hats. In the latter use it originally marked the omission of the letter e. Note: The apostrophe is used to mark the plural of figures and letters; as, two 10's and three a's. It is also employed to mark the close of a quotation.

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