[{"Bold_text": "conjunction", "List Items": ["up to the time that or when; till:He read until his guests arrived.", "before (usually used in negative constructions):They did not come until the meeting was half over."]}, {"Bold_text": "preposition", "List Items": ["onward to or till (a specified time or occurrence):She worked until 6 p.m.", "before (usually used in negative constructions):He did not go until night.", "Scot. and North England.to; unto."]}]