give (your) life

slightly formal

to die in order to save other people or in order to defend a belief that you support.

Millions of soldiers laid down their lives for their country in the Great War.

• back off
• back out
• back out of
• back out of something
• backroom boy
• backseat driver
• back someone into a corner
• back the wrong horse
• back to back
• back-to-back
• back to basics
• back to earth
• back to square one
• back to the drawing board
• back up
• back up someone
• back up something
• bad apple
• bad blood
• bad egg
• rustle up something
• sabre-rattling
• sackcloth and ashes
• sack out
• sacred cow