Musubi Dachi
Musubi Datchi is one of the basic stances in Karate. Formed by putting the heels together and feet out at a 45 degree angle making a V-Shape. This stance is typically the one we go to before bowing.
Yoi Dachi (Ready Stance)
Yoi Dachi or just yoi is used as a ready stance. We usually go to this stance before starting a kata for example. The feet should be a shoulder width apart, toes facing forward.