| floss | hilo dental |
| Floss silk tree | Chorisia |
| Flossenbürg | Campo de concentración de Flossenbürg |
| Flossenbürg concentration camp | Campo de concentración de Flossenbürg |
| flotage | nadar |
| flotation | flotación |
| flotilla | flotilla |
| flotsam | pecios |
| flounder | forcejeo |
| flour | harina |
| flourish | abrirse |
| flourishing | próspero |
| floury | harinoso |
| flout | mofarse de |
| flow | corriente |
| flow away | irse |
| Flow birefringence | Birrefringencia de flujo |
| flow chart | diagrama de flujo |
| flow diagram | organigrama |
| flow down | verterse |
| flow field | campo de flujo |
| Flow instability | Inestabilidad de flujo |
| Flow measurement | Caudalímetro |
| Flow network | Red de flujo |
| Flow of work | Flujo de trabajo |
| flow off | irse |
| flow to | afluir |
| flow together | confluir |
| Flow-rate | Throughput |
| flowchart | organigrama |
| flower | florecer |
| flower arrangement | arreglos florales |
| flower girl | violetera |
| Flower of Scotland | Flower of Scotland |
| Flower war | Xochiyáoyotl |
| Flower-fly | Syrphidae |
| flowerbed | macizo |
| flowered | floreado |
| flowering | brote |
| flowering plant | angiosperma |
| Flowering rush | Butomaceae |
| flowerpot | vaso |
| Flowers | Menstruación |
| Flowers and Trees | Flowers and Trees |
| Flowers for Algernon | Flores para Algernon |
| Flowers in the Dirt | Flowers in the Dirt |
| flowery | florido |
| flowing | fluido |
| flowing back | descendiente |
| flowing together | confluente |
| flowing water | agua corriente |
| Floyd Henry Allport | Floyd Allport |
| Floyd Landis | Floyd Landis |
| Floyd Patterson | Floyd Patterson |
| Floyd-Warshall algorithm | Algoritmo de Floyd-Warshall |
| flu | gripe |
| flub | metida de pata |
| Fluconazole | Fluconazol |
