Expansion

.add(String/Element/jQuery selector)
.add(String selector, Element context)
Create a new jQuery object with elements added.
.addBack([String selector])
Add the previous set of elements on the stack to the current set.
.children([String selector])
The children of each matched element.

.closest(String [, Element context])
.closest(Element/jQuery selector)
The first element of each matched element that matches the selector up the DOM tree.

.contents()
The children of each matched element, including text and comment nodes.
.find(String/Element/jQuery selector)
The descendants of each matched element.
.next([String selector])
The immedlately following sibling of each matched element.
.nextAll([String selector])
All following siblings of each matched element.
.nextUntil([String/Element/jQuery selector
[, String filterSelector]])
All following siblings of each matched element up till the specified element.
.offsetParent()
The closest ancestor element that is positioned.
.parent([String selector])
The parent of each matched element.
.parents([String selector])
The ancestors of each matched element.
.parentsUntil([String/Element/jQuery selector
[, String filterSelector]])
The ancestors of each matched element up till the specified element.

.prev([String selector])
The immediately preceding sibling of each matched element.
.prevAll([String selector])
All preceding siblings of each matched element.
.prevUntil([String/Element/jQuery selector
[, String filterSelector]])
All preceding siblings of each matched element up till the specified element.

.pushStack(String/Elements[] e)
Add a collection of DOM elements onto the jQuery stack.
.siblings([String selector])
All siblings of each matched element.