Is “Lockout” a Scrabble word?

1.The opposite of a strike; a labor disruption where management refuses to allow workers into a plant to work even if they are willing.

2.The action of installing a lock to keep someone out of an area, such as eviction of a tenant by changing the lock.

3.(by extension) The exclusion of others from a certain place or situation.

“It's another front-row lockout for Mercedes on the starting grid of the Japanese Grand Prix.”