Flank, flank.

Flaska, bottle, vial.

Flat, flat, level.

Flens, flange, collar.

Flere, more, several.

Fleste, most.

Flicka, girl, lass, maid.

Flik, lap, lappet, tip.

Flin, giggle, titter.

Flink, brisk, nimble, smart, fleet.