: to change a situation so that one person, group, etc., is more able or likely to succeed : to give an advantage to someone or something Both candidates are qualified, but her experience tips the balance in her favor.

What is tilt the balance?

(also tip the balance/scales) If something tilts the balance, it is the thing that causes a particular situation to happen or a particular decision to be made when other situations or decisions are possible: This might just tilt the balance in the Senator's favor.

What does tipped the scale mean?

: to have (a specified weight) He tips the scales at 285 pounds.