lost
US /lɑːst/
UK /lɑːst/

1.
unable to find one's way; not knowing where one is
:
•
We got lost in the forest.
•
The child felt lost in the crowd.
2.
3.
defeated in a contest or conflict
:
•
Our team was lost in the final game.
•
The battle was lost.
1.
past tense and past participle of lose
:
•
I lost my keys yesterday.
•
She has lost a lot of weight.