Chartbrook Ltd v Persimmon Homes Ltd
Chartbrook Ltd v Persimmon Homes Ltd [2009] UKHL 38 is an English contract law case concerned with the interpretation of contracts. It creates a so-called "red ink" rule, meaning that there is no limit to verbal rearrangement that the court may deploy to give a commercial sensible meaning when construing a contract in its bargaining context.
Source: Wikipedia — Chartbrook Ltd v Persimmon Homes Ltd (CC BY-SA 4.0)