Yes it works although it helps if you define your context first in terms of parent and child nodes. For example:
You need to parse the parent node for relevant data, or if that does not exist, go one level up and parse the node tree from the parent of the parent.
You can also refer to a "higher" or "lower" node, although again context is important to make sure this isn't confused with nodes that are higher or lower in the array of children under a particular node.
In general, to avoid confusion altogether you can use standard XML-type notation. Then you don't have to worry about what the words are in English, as the sentence will be understood by anyone.
Finally the "highest" node in an XML structure (like the DOM) is called the root node, but you probably already knew that :)