lockout noun 10forms 1 noun10 •The opposite of a strike; a labor disruption where management refuses to allow workers into a plant to work even if they are willing. •The action of installing a lock to keep someone out of an area, such as eviction of a tenant by changing the lock. •The exclusion of certain people from a place, event, situation, etc.It's another front-row lockout for Mercedes on the starting grid of the Japanese Grand Prix. •The situation of being locked out of a building.a locksmith who is willing to deal with emergency lockouts •A form of vote splitting in a two-round voting system which a large number of candidates with similar politics prevent each other from advancing to the second round, allowing a pair of opposition candidates to face each other in the runoff. •A safety device designed to prevent touching a moving part when it is under operation; a safety device to keep the power supply turned off during repairs; the standardized practice and method whereby such devices are deployed. •A situation where the system is not responding to input. •The restriction of a population to a certain area, but allowing free movement within that region, in order to prevent the spread of disease. Compare lockdown. •The final portion of a weightlifting motion where all applicable limbs or joints are fully extended or "locked out". •An exercise meant to increase strength in the lockout portion of a lifting motion.Tip: For Bigger Triceps, Do Heavy Lockouts — 2016 formslockouts