For or FOR may refer to:

English language

• For, a preposition

• For, a complementizer

• For, a grammatical conjunction

Science and technology

• for loop, a programming language statement

• Fornax, a constellation

• Fast oil recovery, systems to remove an oil spill from a wrecked ship

• Field of regard, in optoelectronics

• Forced outage rate, in reliability engineering

• Frame of reference, in physics

Other uses

• Fellowship of Reconciliation, a number of religious nonviolent organizations

• Fortaleza Airport (IATA airport code), an airport in Brazil

• Revolutionary Workers Ferment (Fomento Obrero Revolucionario), a small left communist international

• Field of Research, a component of the Australian and New Zealand Standard Research Classification

• FOR, free on rail, a historic form of international commercial term or Incoterm

• "For", a song by Dreamcatcher from Apocalypse: Save Us, 2022

See also

• 4 (disambiguation)