A global content strategy is a structure for managing all of your content that is consumed by people in languages other than the source.
That’s a rather long sentence, so let’s break it down into its pieces:
According to Google, structure is defined as follows:The arrangement of and relations between the parts or elements of something complex.The quality of being organized.FOR MANAGING ALL OF YOUR CONTENT
Wikipedia uses the following definition for content management:Content management is the set of processes and technologies that support the collection, managing, and publishing of information in any form or medium. In recent times this information is typically referred to as content or, to be precise, digital content.CONSUMED IN LANGUAGES OTHER THAN THE SOURCE
Mirriam Webster defines a source language as:A language which is to be translated into another language.
In other words, the source language is the language that you used to create the content. For example, English is the source language of this blog post.