Supplement

добавка

dobavka

(vitamin, herbal extract, or chemical compound — see also dietary supplement)

допълнение

dopǎlnenie

(something added)

допълнителен ъгъл

dopǎlnitelen ǎgǎl

(supplementary angle in geometry)

приложе́ние

priložénie

(extension to a document or publication)

притурка

priturka

(additional section of a newspaper)

допълвам

dopǎlvam

(to provide or make a supplement to)