There are numerous charms and spells that appear in J K Rowling’s Harry Potter books. Some of them are:
Accio which is the Latin word meaning ‘to summon’. It is used to make the objects fly straight to the spell caster.
Aquamenti can cause a jet of water to sprout from the terminal of the spell caster’s wand. The speed of the water can be controlled. Harry used this spell to refill a small goblet in the Horcrux cave and a short time later he and Hagrid used it to douse the flames of Hagrid’s hut when it was set on fire.
Alohomora is formed of two words. In Hawaiian language ‘Aloha’ means ‘hello or farewell’ while ‘mora’ in Latin means ‘obstacle’. Harry used this spell to open the locks of doors and windows. Though this spell could not work on magically locked doors, it could open the "Colloportus."
Anapneo is a Greek word which means ‘to breathe’. This spell clears the airways of a person who is under the spell. It allows him to breathe easily and properly. Horace Slughorn cast this spell on Marcuss Belby when he by chance swallowed a large mouthful of pheasant.
Then there was an anti-cheating spell which the teachers at Hogwarts used on quills or exams to prevent the students from cheating.
This is the jinx which once cast on a person prevents him disapparating. Dumbledore used this jinx to bind the Death Eaters in the Death Chamber at the Ministry of Magic.
This spell can repel the intruders. These spells were cast on the Hogwarts walls for the 1996-97 school year to secure the students from Voldermort when he returned.
Apparate is a Latin word for ‘becoming visible’. This spell enables the spell caster to appear at once at a given place and time. This spell is used to in association with Disapparate. The spell caster must disapparate from one location in order to apparate at another.
Avis is a Latin word for ‘bird’. This spell can conjure up a flock of birds.
Avada Kedavra is a corrupted form of abracadabra which is the incantation used by the magicians. It was worn as an amulet in ancient times to drive away the evil spirits which caused fevers and inflammations. The word may have originated either from the Arabic term “abra kadabra” which means that may the evil things be destroyed, or, from the Aramaic term “abhadda kedhabhra” which means that the disease may disappear with these words.
The spell Avada Kedavra requires strong magic to work, but when the spell is cast effectively it can kill instantaneously producing a blinding flash of green light while leaving no mark on the victim’s body. The killing curse is so strong that there is no way to block it. The only people who could survive the influence of the curse were Harry Potter and Tom Riddle. Avada Kedavra is one of the three most unforgivable curses and those who use this curse against other human beings are punished by a life time imprisonment in Azkaban.
The Bat-Bogey Hex can cause the bogies to grow like bats and attack the victim. Ginny casts this spell on Draco Malfoy in Order of the Phoenix.
This charm was successfully used by Alberta Toothill in the year 1430 All England Duelling Competition to defeat the favorite Samson Wiblin.
This spell was used to create a bubble of air around the spell caster’s head. This spell was often used to enable the spell caster to breathe under the water.
Casting backfiring jinx in the London district of Elephant and Castle was considered a serious crime punishable by calling up the Magical Law Enforcement Squad.
The babbling curse makes the victim to babble nonsense. Lockhart cured someone of this curse while he was on his travels.