This document discusses commonly used prepositions in the English language. It defines prepositions as words used to link words or phrases to a part of the sentence. It then provides examples of different prepositions and their meanings, including prepositions indicating location, direction, and other relationships between people, places or objects. Some of the prepositions discussed are above, below, beside, between, in, out, on, off, across, up, down, around, into, near, through, for, and with.