International Englishneutral
- To withdraw from an educational institution or course before completion.
International Englishneutralinformal
- To stop participating in an activity, organization, or process; to quit or withdraw from involvement.
International Englishinformal
- To disappear from view or to become temporarily unseen or unreachable (e.g., to 'drop out of sight').
International Englishneutral
- To fall out or detach from something; to come out or fall away (literal physical sense).