1) Bitless bridle 2) Halter 3) Headgear 4) Headgear for a horse 5) Looped bridle 1) Halter 
A type of headgear that utilizes a noseband or a bosal for control instead of a bit.[125]
A hackamore is a type of animal headgear which does not have a bit. Instead, it has a special type of noseband that works on pressure points on the face, nose, and chin. It is most commonly associated with certain styles of riding horses. Hackamores are most often seen in western riding and other styles of riding derived from Spanish traditions, a...
• (n.) A halter consisting of a long leather or rope strap and headstall, -- used for leading or tieing a pack animal.
Hack'a·more (-ȧ*mōr) noun [ Confer Spanish jaquima headstall of a halter.] A halter consisting of a long leather or rope strap and headstall, -- used for leading or tieing a pack animal. [ Western U. S.]
A device to guide a horse without a bit, in effect a bitless bridle
A hackamore is an American bitless bridle with a hard oval noseband. It allows pressure to be applied to the horse's nose by means of the reigns attached just in front of a heavy counterbalancing knot.
noun rope or canvas headgear for a horse, with a rope for leading
A bitless bridle used as reins. Pressure on the nose and jaw are used to control the horse.
a bitless bridle; control comes from the pressure of the noseband on the bridge of the horse