Available Definitions:
1) n. - Any one of several species of large marine gastropods belonging to the genus Yetus, or Cymba; a boat shell.
2) adv. - In addition; further; besides; over and above; still.
3) adv. - At the same time; by continuance from a former state; still.
4) adv. - Up to the present time; thus far; hitherto; until now; -- and with the negative, not yet, not up to the present time; not as soon as now; as, Is it time to go? Not yet. See As yet, under As, conj.
5) conj. - Before some future time; before the end; eventually; in time.
6) conj. - Even; -- used emphatically.
7) conj. - Nevertheless; notwithstanding; however.