To send somebody to solitary confinement; to make somebody be admitted to solitary confinement.
To verify a person's information and record their arrival, such as at a hotel, airport, etc.
To integrate new revisions into the public or master version of a file in a version control system.
To visit in order to see how someone is doing.
To announce or record one's own arrival at a hotel, airport etc.
To contact another person in order to keep the other person informed of one's situation.
To return (a book to a library, source code to a repository, etc.).
To enter solitary confinement at one's own request for protection from other prisoners.
To absent oneself from (work or other responsibility), especially with permission.
To depart.
To quantify.
To remove.
To leave the ground and begin flight; to ascend into the air.
To imitate, often in a satirical manner.
To become successful, to flourish.