Definition of "drop out" in English

Verb

1. To leave (school, a race, etc.) prematurely and voluntarily.

   • Nothing went well in high school, so he dropped out.

2. To opt out of conventional society.

3. To be lost or momentarily interrupted.

   • I can't make phone calls because the line keeps dropping out.

4. Used other than figuratively or idiomatically: see drop,‎ out.

5. To give way under someone.

   • The board he was walking on dropped out.

6. To cause someone to slip and/or fall down.

   • The ground dropped out from under him.
   • When she left him, his world dropped out beneath him.

7. To dismiss, break up with or abandon (someone).