[thicker] See: [BLOOD IS THICKER THAN WATER].

[thin] See: [INTO THIN AIR], [OUT OF THIN AIR], [SIT ON […]

[thing] See: [A LITTLE KNOWLEDGE IS A DANGEROUS THING], [DO ONE'S […]

[thing or two] {n. phr.}, {informal} 1. Facts not generally known, […]

[Things are looking up!] Informal way to say that conditions are […]

[think] See: [COME TO THINK OF IT].

[think a great deal of] or "think a lot of" also […]

[think a lot of] See: [THINK A GREAT DEAL OF].

[think aloud] or [think out loud] {v.} To say what you […]

[think better of] {v.} To change your mind about; to consider […]