The initial idioms of the letter F

foreign country	foreign direct investment
foreign draft	foreign exchange
Foreign Intelligence Service	Foreign Intelligence Surveillance Act
Foreign Intelligence Surveillance Court	foreign legion
foreign minister	foreign mission
Foreign Office	foreign policy
Foreign Service	foreign terrorist organization
foreign-born	foreigner
foreignness	foreknow
foreknowledge	forelady
foreland	foreleg
forelimb	forelock
foreman	foremanship
foremast	foremilk
foremost	foremother