F

Ferula
fe'-ROO-loh
Conjures a wooden rod.

Fidelius Charm
As Albus Percival Wulfric Brian Dumbledore once described it, the Fidelius Charm is "an immensly complex spell involving the magical concealment of a secret inside a single, living soul. The information is hidden inside the chosen person, or Secret-Keeper, and is henceforth impossible to find--unless, of course, the secret-keeper chooses to divulge it."

Finite
fih-NEE-ta
Halts a currently operating spell effect.

Finite Incantatem
fih-NEE-ta ihn-kan-TAH-tem
Halts currently operating spell effects.

Fixing Charm
Fastens the subject to an other subject/other object.

Flagrate
floh-GROH-te'
Draws a fiery line in the air.

Flame-Freezing Charm
Causes fire to emit what feels like a warm breeze instead of insufferable heat.

Four-Point Spell
Point Me.
POYNT mee
When the user holds his/her wand in open palm and says the incantation, the wand points North.

Freezing Charm
Freezes the subject.

Full Body-Bind
Petrificus Totalus
pe-TRIH-fih-kus to-TAH-lus
Petrifies the subject completely, leaving him or her with straight legs and arms tightly at side.

Furnunculus
fur-NUHN-kyoo-lus
Causes subject to immediately and rapidly break out with big, ugly boils.