The standard book of spells grade 3 will contain all the magical charms and spells you will learn in your third year. 

Accio - Brings whatever you are pointing at with your wand to you. You can also say, for
instance, Summoning
Alohomora - Unlocks and opens a door
Aparecium - A Revealing charm- this makes invisible ink appear.
Avada Kedavra - Known as the Unforgivable curse, this is one of the few curses that are illegal.
Avis - Birds come out of the tip of the wand
Banishing Charm - Opposite of the Summoning Charm.
Crucio - Puts something in pain and agony
Deletrius - Makes a shadow disappear
Densaugeo - Makes your teeth grow very, very fast
Diffindo - Splits a bag open
Disapparate - to disappear at will
Engorgio - Makes something bigger
Ennervate - Brings someone back to life after they have been stunned
Expecto patronum - brings forth a guardian that acts as a shield between a Wizard and a
Dementor - A guard of Azkaban
Expelliarmus - The Disarming Spell
Furnunculus - Makes boils pop up on the thing that you are pointing at
Ferula - For wrapping bandages on injuries.
Fidelius Charm - a spell keeping a secret inside a Secret Keeper and is impossible to find,
unless the person tells
Finite Incantatem - Finishes all present incantations that have been performed.
Fire Freezing Charm - freezes fire
Impedimenta - Takes away the use of the legs
Imperio - Makes you have control at the thing that you point your wand at
Incendio - Starts a fire
Impervius - Repels water.
Jelly-Legs Jinx - Turns your legs to jelly.
Locomotor Mortis - Leg-Locker Curse
LOrchideous - Flowers pop up from the tip of the wand
Petrifucus Totalus - Total Petrification; Full Body-Bind; Makes you completely rigid
Prior Incantato - Shows the last spell or charm that a wand did.
Peskipiksi Pesternomi - Supposed to stop pixies rampaging
Point me - the tip of your wand points north, acting like a compass.
Quietus - Makes you voice return to normal after using the Sonorus charm
Reducio - Reduces the size of something
Relashio - Sparks come out of the end of the wand, repels grindylows
Reparo - Repair's something that is broken
Riddikulus - Makes something disappear: Also makes a boggart look funny
Reductor Curse - Blasts objects out of the way.
Rictusempra - A Tickling charm
Sonorus - Makes your voice very, very loud
Stupefy - Stuns a person
Serpensortia - Makes a snake appear.
Shield Charm - Casts a temporary invisible wall around you that deflects minor curses.
Tarantallegra - Makes you perform a quickstep dance.
Waddiwasi - Forces something to move with the speed of a bullet
Wingardium Leviosa - Raises something in the air and makes it hover ten feet above the
ground. umus - Lights up the end of your wand
Mobilarbus -Spell to move objects.
Mobilicorpus - For lifting people.
Morsmordre - Summons up the Dark Mark.
Nox - stops lumos
Obliviate - Memory modifier