[to and fro] {adv. phr.} Forward and back again and again. […]

[to be on the safe side] {adv. phr.} To take extra […]

[to be sure] {adv. phr.} Without a doubt; certainly; surely. * […]

[to boot] {adv. phr.} In addition; besides; as something extra. * […]

[to date] {adv.} or {adj. phr.} Up to the present time; […]

[to death] {adv. phr.}, {informal} To the limit; to the greatest […]

[to no avail] (2) {adv. phr.}, {formal} Without result; unsuccessfully. * […]

[to one's face] {adv. phr.} Directly to you; in your presence. […]

[to one's feet] {adv. phr.} To a standing position; up. * […]

[to one's heart's content] {adv. phr.} To the extent of one's […]