Pay Back Sb Money Week Meaning Return Borrowed

Meaning: If you pay someone back, you return money that you borrowed from them in the past.

• pay sb back Thanks for lending me the money. I'll pay you back when I get paid next week.
  
  
• pay back sb Will you pay back your friends first, or will you pay back the bank first?
  
  
• pay sth back to sb You promised you'd pay all the money back to me this week. So where is it?