sign off (on (something))

to officially agree to or support something.

Mary has to sign off on any expenses over $2,500.

A judge must sign off on a search of anyone's property.

If all parties sign off, the settlement would end eight years of court battles.

Usage notes: often used when someone agrees to something by putting their signature on an official document

• a quid pro quo
• a race against the clock
• a race against time
• a race against time clock
• a rainy day fund
• a rake-off
• a rap across the knuckles
• a rap on the knuckles
• a rap over the knuckles
• a rap sheet
• a rat fink
• a rat race
• a raw deal
• a ray of sunshine
• are all over
• a red cent
• a red eye
• a red herring
• a red-letter day
• a reign of terror
• a Renaissance man
• a rent boy
• are someone all over
• are something all over
• a revolving door