Subsidiary
Part of speech: adjective
Definition: auxiliary or supplemental secondary or subordinate of, or relating to a subsidy
Part of speech: noun
Definition: A company owned by the parent company or holding company a subordinate theme
Accessory
Part of speech: adjective
Definition: Having a secondary, supplementary or subordinate function by accompanying as a subordinate; aiding in a secondary way; being additional; being connected as an incident or subordinate to a principal; contributing or being contributory. Said of persons and things, and, when of persons, usually in a bad sense; as, he was accessory to the riot; accessory sounds in music.Assisting a crime without actually participating in committing the crime itself.
Part of speech: noun
Definition: That which belongs to something else deemed the principal; something additional and subordinate, an attachmentAn article that completes one's basic outfit, such as a scarf or gloves.One who, not being present, contributes as an assistant or instigator to the commission of an offense.Anything that enters into a work of art without being indispensably necessary, as mere ornamental parts. - James Elmes