global

It's OK to use global to mean worldwide.

In content for a technical audience, use global to refer to:

• Memory that's accessible to more than one process.
• A variable whose value can be accessed and modified by any statement in a program. This is called a global variable.
• Similar elements that pertain to an entire program.

Don't use global to describe the process of finding and replacing. Instead, describe the action or use all instances or all occurrences.

Examples
Use the Find and Replace commands to find all occurrences of specific text and replace it with different text.
The manufacturer is using Office 365 to expand its global supply chain.

See also worldwide vs. international