| fura-greve | strikebreaker |
| furacão | hurricane |
| Furacão Adrian | Hurricane Adrian |
| Furacão Alex | Hurricane Alex |
| Furacão Andrew | Hurricane Andrew |
| Furacão Anita | Hurricane Anita |
| Furacão Camille | Hurricane Camille |
| Furacão Catarina | Cyclone Catarina |
| Furacão Dean | Hurricane Dean |
| Furacão Dennis | Hurricane Dennis |
| Furacão Elena | Hurricane Elena |
| Furacão Emily | Hurricane Emily |
| Furacão Fabian | Hurricane Fabian |
| Furacão Flossie | Hurricane Flossie |
| Furacão Frances | Hurricane Frances |
| Furacão Félix | Hurricane Felix |
| Furacão Henriette | Hurricane Henriette |
| Furacão Humberto | Hurricane Humberto |
| Furacão Iris | Hurricane Iris |
| Furacão Ivan | Hurricane Ivan |
| Furacão Jeanne | Hurricane Jeanne |
| Furacão Juan | Hurricane Juan |
| Furacão Katrina | Hurricane Katrina |
| Furacão Kenna | Hurricane Kenna |
| Furacão Lorenzo | Hurricane Lorenzo |
| Furacão Mitch | Hurricane Mitch |
| Furacão Noel | Hurricane Noel |
| Furacão Rita | Hurricane Rita |
| Furacão Wilma | Hurricane Wilma |
| furadeira | drill |
| furadeira pneumática | pneumatic drill |
| furado | leaky |
| furador | awl |
| furano | furan |
| furar | flake |
| furar a fila | soccer |
| furar greve | frantic |
| furara fila | soccer |
| Furação | Storm |
| Furcraea | Furcraea |
| furgão | van |
| furioso | mad |
| furlong | furlong |
| furnal | soccer |
| furo | bore |
| furor | furor |
| furorl | fire |
| Furry | Furry fandom |
| furta-cor | soccer |
| furtado | stolen |
| furtar | diddle out of |
| furtar-se a | soccer soccer |
| furtar-sea | soccer soccer |
| furtarse a | to sneak |
| Further Instructions | Further Instructions |
| furtivamente | stealthily |
| furtividade | stealth |
| furtivo | sneaky |
| furtivom | sly |
| furto | abstraction |
| furtogem | soccer soccer |
| Furtwangen | Furtwangen im Schwarzwald |
| furão | social climber |
| furão-bravo | polecat |
| furãol | ferret |
| furúnculo | boil |
| fusa | demisemiquaver |
| fusagem | soccer soccer |
| Fusarium | Fusarium |
| fuscagem | soccer soccer |
| fuselagem | fuselage |
| fuselo | bar-tailed godwit |
| Fushigi Yūgi | Fushigi Yūgi |
| fusiforme | fusiform |
| Fusion | Melting |
| fuso | spindle |
| fuso (de fiar) | soccer soccer |
| fuso horário | time zone |
| Fuso mitótico | Spindle apparatus |
| Fuso muscular | Muscle spindle |
