[to the best of one's knowledge] As far as you know; […]

[to the bitter end] {adv. phr.} To the point of completion […]

[to the bone] {adv.}, {slang}, {informal} Thoroughly, entirely, to the core, […]

[to the bottom] See: [GET TO THE BOTTOM OF].

[to the contrary] {adv.} or {adj. phr.} With an opposite result […]

[to the effect that] {adj. phr.} With the meaning or purpose; […]

[to the eye] {adv. phr.} As it is seen; as a […]

[to the fore] {adv.} or {adj. phr.} Into leadership; out into […]

[to the full] {adv. phr.} Very much; fully. * /The campers […]

[to the gallery] See: [PLAY TO THE GALLERY].