transatlantic: across the Atlantic Ocean
trancontinental: across the continent
transcribe: to write across languages; to translate
transect: to cut across or divide by cutting
transfer: to move from one place to another; to move across places
translate: to cut through any language barrier by changing one language into another
translucent: clear; light can pass through; see through but not perfectly clear
transparent: perfectly clear; obvious; light shows clearly through
transpiration: the process of giving off moisture through pores of skin or through the surface of leaves and plants