To go or come into an enclosed or partially enclosed space.
To become effective; to come into effect.
To go or come into (a state or profession).
To become a party to an agreement, treaty, etc.
To cause to go (into), or to be received (into); to put in; to insert; to cause to be admitted.
To place in regular form before the court, usually in writing; to put upon record in proper from and order
To go into or upon, as lands, and take actual possession of them.
To deposit for copyright the title or description of (a book, picture, map, etc.).
To type (something) into a computer; to input.
To record (something) in an account, ledger, etc.
To make report of (a vessel or its cargo) at the custom house; to submit a statement of (imported goods), with the original invoices, to the proper customs officer for estimating the duties. See entry.
To leave in a hurry; to go away.
To scratch (something) with claws or fingernails; to claw.
Of a nuclear reactor or some other thing: to shut down, usually because of an emergency.
To shut down (a nuclear reactor or, by extension, some other thing) for safety reasons, usually because of an emergency.
A shutdown of a nuclear reactor (or, by extension, some other thing), often done rapidly due to an emergency.
The device used to shut down a nuclear reactor; also, the button or switch used to initiate a shutdown.
A scratch, especially caused by claws or fingernails.