Apostrophes are those little floating comma ... [As in] ‘Grandma prefers to sign birthday cards with k’s and h’s instead of x ...
An apostrophe can be used to show that one thing belongs to or is connected to something. This is called a possessive apostrophe. Let's take a look at some examples. The cat's tail was fluffy.
First, remind yourself how apostrophes are used for contraction by watching this video. You can use apostrophes to show that you have omitted (left out) some letters when you are joining words ...