| F region ... factorial |
| factoring ... Fairfield University |
| Fairhaven ... fall line |
| Fall River ... family practice |
| Family, The ... Fardd, Eben |
| Fareham ... Faroe Islands |
| Faroese language ... Father of the Church |
| Father's Day ... Faylakah |
| Fayrfax, Robert ... fee |
| feeblemindedness ... felsenmeer |
| felsic rock ... Ferahan carpet |
| Feraoun, Mouloud ... Fermanagh |
| Fermat prime ... Ferreira, Manuel |
| Ferreira, Vergilio ... fetial |
| Fetis, Francois-Joseph ... fiction |
| Ficus ... Figg, James |
| fighter aircraft ... fin stabilizer |
| fin whale ... fir |
| Firbank, Ronald ... Fischart, Johann |
| Fischer von Erlach, Johann Bernhard ... Fiske, John |
| Fiske, Minnie Maddern ... fives |
| Fizeau, Armand-Hippolyte-Louis ... flat bark beetle |
| flat bug ... Fleming, Victor |
| Fleming, Williamina Paton Stevens ... flocculation |
| Flodden, Battle of ... Floridor |
| Florio, John ... flutemouth |
| fluting and reeding ... foie gras |
| foil ... Fontaine, Hippolyte |
| Fontainebleau ... Forberg, Friedrich Karl |
| Forbes ... Forest |
| forest ... Forrest, Edwin |
| Forrest, Leon ... Fort Smith |
| Fort Stanwix, Treaties of ... Foster, Harold Rudolf |
| Foster, Jodie ... fourteener |
| Fouta ... Frame, Janet |
| framed building ... Franck, Sebastian |
| Franck-Hertz experiment ... Franklin |
| Franklin ... Frazier, Walt |
| Frechet, Maurice ... Fredericton |
| Frederiksberg ... Freesia |
| freestyle skiing ... French revolutionary and Napoleonic wars |
| French Shore ... Freytag, Gustav |
| Fria ... Friis, Johan |
| Friml, Rudolf ... front |
| Front Range ... Fu'ad I |
| Fu-an ... Fujiwara Kamatari |
| Fujiwara Michinaga ... Fuller, Melville Weston |
| Fuller, R Buckminster ... funnel-web spider |
| fur ... fusulinid |
| Futabatei Shimei ... |
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