Something added, especially to make up for a deficiency.
An extension to a document or publication that adds information, corrects errors or brings up to date.
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.
(nutrition) A vitamin, herbal extract or chemical compound ingested to meet dietary deficiencies or enhance muscular development.
An additional charge, especially for food in a restaurant.
To provide or make a supplement to something.