Chinning is a word that has several synonyms which can be used interchangeably. Some of these synonyms include chin-up, pull-up, and grip strength exercise. Chinning is an exercise that is designed to strengthen the muscles in the upper body and improve grip strength. It is often used by athletes who need to have strong upper bodies for their sport. Chin-ups and pull-ups are two variations of chinning that are commonly used in fitness routines. These exercises involve lifting the body by holding onto a bar and pulling it towards the chin. Grip strength exercises are also used to improve hand and arm strength and can be done using a grip strength trainer or by simply gripping a weighted object.