Gear
Weapons - guns that players use to damage their enemies. There are 8 different types of weapons divided into 3 categories, primary, special and heavy. Players can equip 1 weapon in each category.
Armor - equipment that increases the defense, stats and light of the player. Players can equip Armor in 5 slots. Helmet, Chest Armor, Gauntlets, Leg Armor give bonus attributes while Class Armor is merely cosmetic.
Class Armor - different type of class armor for each class. Marks for Titan, Cloaks for Hunter and Bonds for Warlock. In Year 1, class armor was purely cosmetic. In Year 2, Class Armor offer stats and other effects.
Ghost Shells - cosmetic items that change the looks of your Ghosts. In Year 2, new Ghost Shells have unique effects and stat bonuses.
Artifacts - special items introduced in The Taken King and Year 2.
Vehicles - ride-able machines players can use to travel faster. Sparrows are fast and maneuverable personal vehicles. Players can upgrade their stats by equipping better ones.
Ships - flying machines used to travel between various planets. Ships are only cosmetic, they offer no increased stats or other in-game bonuses.
Shaders - cosmetic items that change the looks of your Armor by giving them different styles and coloration.
Emblems - cosmetic items that show up on your profiles.
Engrams - unidentified items dropped by enemies or awarded after completing strikes and missions. Players can bring them to Cryptarch to decipher them and obtain weapons, armor and other items.
Inventory
Materials - items used to upgrade Weapons and Armor. Players can collect materials from chests and objects scattered across Destiny or purchase them from vendors.
Consumables - items used to grant in-game bonuses for a short time. Most consumables are 1-time used items. These items are purchased from Vendors or dropped from enemies.
Mission Items - items obtained or used in missions and quests.
Bounties - item representations of Bounties obtained from Bounty Tracker, Eris Morn and other NPCs. Players can have 8 bounties at a time. Completed bounties can be turned into their corresponding NPCs.
Currencies - money and items that are used to purchase valuable weapons, armor and other items.