F7

F7 is a designation that appears in several distinct contexts. In computing, F7 is a function key on most standard keyboards, labeled F1 through F12. Its specific action depends on the program in use. In Microsoft Office applications, pressing F7 typically opens the Spelling and Grammar checker. In Mozilla Firefox, F7 toggles Caret Browsing, which enables navigating webpages with the keyboard.

F-7 refers to a family of Chinese fighter aircraft developed from the MiG-21. Built by Shenyang, these aircraft have been exported to multiple countries under various designations, including F-7 and its variants, and have played a role in regional air forces since the 1960s.

In genetics, F7 denotes the seventh filial generation, the offspring resulting from successive crosses or matings in a breeding experiment. The "F" stands for filial, and the number indicates the generation after the initial parental cross (P).

In rail transportation, the ALCO F7 is a diesel-electric locomotive introduced in 1949–1953. Built by the American Locomotive Company (ALCO) and supplied to several railroads, it became a prominent model during the mid-20th century.

In Islamabad, Pakistan, F-7 is a sector of the planned capital territory. The designation is used in addresses and maps, with F-7 containing mixed residential and commercial areas and several sub-sectors.