Definition of "lose"
- verb
- To cause (something) to cease to be in one's possession or capability due to unfortunate or unknown circumstances, events or reasons. 
- To have (an organ) removed from one's body, especially by accident. 
- To fail to win (a game, competition, trial, etc). 
- To shed (weight); to reduce. 
- To experience the death of (someone to whom one has an attachment, such as a relative or friend). 
- To be unable to follow or trace (somebody or something) any longer. 
- To shed, remove, discard, or eliminate. 
- Of a clock, to run slower than expected. 
- To cause (someone) the loss of something; to deprive of. 
- Sources