lie down
US /laɪ daʊn/
UK /laɪ daʊn/

1.
to put your body in a horizontal position, usually on a bed or other surface
:
•
I need to lie down for a bit, I'm feeling tired.
•
The doctor told him to lie down and rest.
2.
to accept a difficult or unpleasant situation without fighting against it
:
•
He refused to just lie down and let them win.
•
We can't just lie down and accept these unfair terms.