Hogwarts Spell Book

A

Accio (Summoning Charm)

Pronunciation: Various suggestions have been made

['akkio] (AK-ee-o) - classical Latin (film)
['aksio] (AK-see-o) - (audiobook, video game)
['aesio] (AH-see-o) - (Scholastic) English

Description: This charm summons an object to the caster, potentially over a significant distance.
Suggested Etymology: The Latin word accio means "i call" or "I summon".

(Age-Line Spell)

Pronunciation: Unknown
Description: Creates a line that is impassable by people below a set age.

Aguamenti

Pronunciation: AH-gwa-MEN-tee or AG-YOO-A-Menti
Description: Produces a jet of water from the Witch or Wizard's wand.

Alohomora

Pronunciation: AL-lo-ha-MOR-ah
Description: Used to open and unlock doors. It is not effective on doors bewitched to resist this spell.