Addition
Part of speech: noun
Definition: The act of adding anything. Anything that is added. The process of adding.
Example sentence: It is the addition of strangeness to beauty that constitutes the romantic character in art.
Accession
Part of speech: noun
Definition: A coming to; the act of acceding and becoming joined; as, a king's accession to a confederacy.Increase by something added; that which is added; augmentation from without; as, an accession of wealth or territory.A mode of acquiring property, by which the owner of a corporeal substance which receives an addition by growth, or by labor, has a right to the part or thing added, or the improvement (provided the thing is not changed into a different species). Thus, the owner of a cow becomes the owner of her calf.The act by which one power becomes party to engagements already in force between other powers - KentThe act of coming to or reaching a throne, an office, or dignity; as, the accession of the house of Stuart; -- applied especially to the epoch of a new dynasty.The invasion, approach, or commencement of a disease; a fit or paroxysm.
Part of speech: verb
Definition: To make a record of (additions to a collection).