A preposition is a word that tells you where or when something is in relation to something else. Examples of prepositions include words like 'after', 'before', 'on', 'under', 'inside' and 'outside'.

WEST LAFAYETTE, Ind. – Parts of the human brain think about the same word differently, at least when it comes to prepositions, according to new language research in stroke patients conducted by ...

John in Albany, N.Y., had a question about something he heard in a TV commercial: “Dentures are different to real teeth.” The preposition struck him as odd. “I don’t recall ever hearing this ...

“From”, “at”, “since” or “around” – prepositions like these help us to locate things. They point us in the right direction – in time or place, for example. But it is not always as simple as it seems.