Locked in

What is Locked in?

Locked in definition and meaning on Dictionary terms:
a device for securing a door, gate, lid, drawer, or the like in position when closed, consisting of a bolt or system of bolts propelled and withdrawn by a mechanism operated by a key, dial, etc.
a contrivance for fastening or securing something.

(in a firearm) the mechanism that explodes the charge; gunlock. safety(def 4).

any device or part for stopping temporarily the motion of a mechanism.
an enclosed chamber in a canal, dam, etc., with gates at each end, for raising or lowering vessels from one level to another by admitting or releasing water.
an air lock or decompression chamber.
complete and unchallenged control; an unbreakable hold: The congresswoman has a lock on the senatorial nomination.
Slang. someone or something certain of success; sure thing: He’s a lock to win the championship.
Wrestling. any of various holds, especially a hold secured on the arm, leg, or head: leg lock.
Horology. (in an escapement) the overlap between a tooth of an escape wheel and the surface of the pallet locking it.
Metalworking. a projection or recession in the mating face of a forging die.

verb (used with object)
to fasten or secure (a door, window, building, etc.) by the operation of a lock or locks.
to shut in a place fastened by a lock or locks, as for security or restraint.

to make fast or immovable by or as if by a lock: He locked the steering wheel on his car.
to make fast or immovable, as by engaging parts: to lock the wheels of a wagon.
to join or unite firmly by interlinking or intertwining: to lock arms.
to hold fast in an embrace: She was locked in his arms.
to move (a ship) by means of a lock or locks, as in a canal (often followed by through, in, out, down, or up).
to furnish with locks, as a canal.

verb (used without object)
to become locked: This door locks with a key.
to become fastened, fixed, or interlocked: gears that lock into place.

to go or pass by means of a lock or locks, as a vessel.
to construct locks in waterways.

Verb Phrases
lock in, to commit unalterably: to lock in the nomination of the party’s candidates. (of an investor) to be unable or unwilling to sell or shift securities.

lock off, to enclose (a waterway) with a lock.

lock on, to track or follow a target or object automatically by radar or other electronic means.
lock out, to keep out by or as if by a lock. to subject (employees) to a lockout.

lock up, to imprison for a crime.Printing. to make (type) immovable in a chase by securing the quoins. to fasten or secure with a lock or locks. to lock the doors of a house, automobile, etc. to fasten or fix firmly, as by engaging parts.


reference: https://www.dictionary.com/browse/locked–in