Get a set of elements containing all of the unique siblings of each of the matched set of elements. Can be filtered with an optional expressions. (optional) An expression to filter the sibling Elements with Find all siblings of each div. <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p> $("div").siblings() [ <p>Hello</p>, <p>And Again</p> ] Find all siblings with a class "selected" of each div. <div><span>Hello</span></div><p class="selected">Hello Again</p><p>And Again</p> $("div").siblings(".selected") [ <p class="selected">Hello Again</p> ]