An angle that, when added to a given angle, makes 180°; a supplementary angle.
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.
A surcharge, additional cost, especially for food in a restaurant.
An extension to a document or publication that adds information, corrects errors or brings up to date.
To provide or make a supplement to something.
The part of a telescope containing the adjusting device for the eyepiece, etc.
An appendage or appendix.
An element, often triangular, to which the strings of a violin, guitar, etc. are attached at the lower end of an instrument.
A short joist between a header and a wall.
The part of a lock that transmits motion from the hub to the latch bolt.