In Contractions^x, Abbreviations^x, Singular nouns^x

Apostrophe ( ' ) The apostrophe is used when leaving out a letter or number in a contraction, e.g. can't, wouldn't. The apostrophe is used for omitted letters, e.g. rock 'n' roll, and for omitted numbers, e.g. the class of '72, the '20s. The apostrophe is used for plurals of letter...

Apostrophe ( ' ) See Possessives for more information. The apostrophe is used when leaving out a letter or number in a contraction, e.g. can't, wouldn't. The apostrophe is used for omitted letters, e.g. rock 'n' roll, and for omitted numbers, e.g. the class of '72, the '20s. The...

As Taken from one of the site. Briefly, we can say that apostrophes have three uses: 1) To show possession in nouns We add an apostrophe and "s" after all singular nouns and after plural nouns that do not end in "s": Susan’s book; Pete’s dog; the children’s toys; the men’s room. ...