The concept of a labor aristocracy is controversial between Marxists. While the theory is formally shared by most currents that identify positively with Lenin, including the Communist International, few organizations place the theory at the center of their work.
append. 1  to add as a supplement, accessory, or appendix; subjoin: to append a note to a letter. 2  to attach or suspend as a pendant. 3  to sign a document with; affix: to append one's signature to a will.
An addendum is something that is added and made part of the original document only if it has been accepted by the concerned authorities. An Addendum is an informational or explanatory note of the requirements of the parties concerned that have not been specified in the original document.