(US) A train station at which trains stop only on request.

(US, military, uncountable) A requirement for soldiers to remain in service beyond their normal discharge date. / (stock market, countable) A stop loss order.

(music, stringed instruments) two notes being played simultaneously

(aviation) A stop most commonly used to refuel the aircraft, to make unexpected essential repairs or to respond to some emergency need to land the aircraft. No traffic is unloaded or loaded during a technical stop.

An attachment placed underneath the front of a roller skate or ice skate, used to brake or for stability.

(skating, skiing) A method of stopping by rapidly bringing the feet perpendicular to the direction of motion.

(intransitive, skating, skiing) To perform a hockey stop.

(photography) A transmission stop; an alternative to an f-stop. / (skating) A method of stopping by placing one foot perpendicular to, and behind, the other, thereby forming a T shape.

(intransitive, skating) To perform a T-stop.

In roller skating, a method of stopping by bringing the back of the skates outwards, and the front inward, imitating a snowplow.