capex

This term is a specialized piece of corporate financial jargon, serving as a shorthand for capital expenditure. It is primarily used in business reports, accounting documents, and executive meetings to distinguish long-term investments from day-to-day operational costs (opex).

Because it refers to a specific category of spending, it is treated as an uncountable mass noun. You would not refer to "three capexes"; instead, you would discuss "a high level of capex" or "increased capex spending."