sign out

present singular third person signs out · participle present signing out · participle past signed out · past signed out

1. intransitiveTo sign one's name as an indication that one is leaving some location; to take some action to indicate one is leaving a secured program or web page on a computer.

   He was the last person to sign out of the building that night.

   1 more example

   After making the necessary edits, always sign out of the system.

   Synonyms: log off, log out, sign off · Antonyms: log in, log on, sign in, sign on

2. especiallytransitiveTo remove (something) and take (it) into one's possession, having registered or signed for it in some way as a record of possession and a promise to return it (e.g., by your signature or log-in credentials).

   To sign out a book, you must present your library card to the clerk.

   1 more example

   If you want to take a book home from the library, you must sign it out.

3. To signal.
4. sign languageTo say something through sign language.