For or FOR may refer to: English language For, a preposition For, a complementizer For, a grammatical conjunction Science and technology Fornax, a constellation for loop, a programming language statement Frame of reference, in physics Field of regard, in optoelectronics Forced outage rate, in reliability engineering Other uses Fellowship of Reconciliation, a number of religious nonviolent organizations Pinto Martins International Airport (IATA airport code), an airport in Brazil Revolutionary Workers Ferment (Fomento Obrero Revolucionario), a small left communist international Fast oil recovery, systems to remove an oil spill from a wrecked ship Field of Research, a component of the Australian and New Zealand Standard Research Classification FOR, free on rail, an historic form of international commercial term or Incoterm See also Four (disambiguation)