<p><strong>Preposition</strong></p><ul><li>up to the time of; until: to fight till death.</li><li>before (used in negative constructions): He did not come till today.</li><li>near or at a specified time: till evening.</li><li>Chiefly Midland, Southern, and Western U.S. before; to: It's ten till four on my watch.</li><li>Scot. and North England. to; unto.</li></ul><p><strong>Conjunction</strong></p><ul><li>to the time that or when; until.</li><li>before (used in negative constructions).</li></ul>