colocation

In linguistics, this term describes words that naturally cluster together, creating a predictable pattern that sounds native to a speaker. It differs from a simple combination of words by implying a statistical frequency of occurrence, where certain words are "preferred" partners. For example, we say "fast food" but not "quick food," even though the adjectives are synonyms.

In the technology sector, the term refers to a specific business arrangement where a company rents space for its hardware in a professional data center. This is distinct from cloud computing, as the client retains ownership of the physical servers while the provider supplies the power, cooling, and physical security.