Someone who accedes to some act, now especially a crime; one who contributes as an assistant or instigator to the commission of an offense.
Accompanying as a subordinate; additional; accessory; especially, uniting in, or contributing to, a crime, but not as chief actor. See accessory.
An extension to a document or publication that adds information, corrects errors or brings up to date.
A vitamin, herbal extract or chemical compound ingested to meet dietary deficiencies or enhance muscular development.
Something added, especially to make up for a deficiency.
An additional section of a newspaper devoted to a specific subject.
An angle that, when added to a given angle, makes 180°; a supplementary angle.
A surcharge, additional cost, especially for food in a restaurant.
To provide or make a supplement to something.