To make level, square, balanced, or concentric.
To certify what was formerly an estimation.
To find the exact amount.
To correct any skewed perception or actuality.
Uses: true-up, truing-up, trued-up, true up, truing up, trued up
A large company buys X number licenses of software program for use by the employees. As the company grows the software program gets copied and used, therefore cheating the software makers out of money. Yearly, the company needs to "true-up" the copies being used and pay the software makers for what they are actually using.
True up the cylinder of an engine.