- family Lepisosteidae
- family Monocanthidae
- family Latimeridae
- family Rhinobatidae
- family Liparididae
- family Poeciliidae
- family Sillaginidae
- family Salmonidae
- family Esocidae
- family Branchiostegidae
- family Hexanchidae
- family Chimaeridae
- family Syngnathidae
- family Gobiidae
- Fistulariidae
- family Petromyzontidae
- Fistularia
- fauvism
- few_flowered leek
- flaking
- french guinea
- finely nodular cirrhosis
- farley maidenhair fern
- farm budgeting
- fannie farmer
- food colour
- frozen foods
- frozen food
- food color
- food coloring
- food colouring
- foodie
- farmerette
- fieldfare
- farm team
- farm_place
- fleapit
- flea_bitten
- flirtatiously
- fluoxetine hydrocholoride
- Florentine iris
- Fechner's law
- frost proof
- frost bite
- fossorial index
- fontenoy
- fire and brimstone
- floopy diskette
- French teacher
- fire_swallower