What does capability mean?
Capability is a noun denoting the power, skill, or capacity to do something. It is used both for people — where it suggests competence or latent talent — and for systems, organizations, and technologies, where it often names a concrete set of functions or features. A country's military capability, a phone's camera capability, or an employee's capability for leadership all illustrate this range. The word sits comfortably in formal registers and appears frequently in business strategy, defense planning, and technology writing, where phrases like "core capability" and "capability gap" are standard. Unlike "capacity," which measures how much something can hold or absorb, capability foregrounds what can actually be accomplished. Derived from the Latin "capere" (to take or contain), via "capable," it entered English from French in the late sixteenth century and remains one of the most versatile words for expressing practical competence and potential.
The power or skill to perform a particular task or achieve a particular result.
"The team has the capability to deliver the project ahead of schedule."
Often used with prepositions such as "the capability to" or "a capability for."
A specific feature or function possessed by a system, device, or organization (usually in plural).
"The aircraft's surveillance capabilities were upgraded last year."
Untapped potential or aptitude for development.
"The program aims to identify students of exceptional capability."
The plural typically refers to a collection of distinct skills, functions, or strengths rather than ability in general.
"The company invests heavily in expanding its analytical capabilities."
English borrowed "capability" from French in the 1580s — and within decades it was already being used to mean not just ability, but the dangerous kind: "a man of capabilities" could imply he was clever enough to get away with anything.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of capability
"Capability" derives from the Latin verb "capere" (to take, seize, or contain), which also gave English words such as "captive" and "capture." It entered English in the late sixteenth century, borrowed from French forms related to "capable." Over time it broadened from simple ability to encompass both developed competence and unrealized potential, and its plural form came to denote discrete functions or strengths.
How capability is actually used
Register is neutral to formal; the word is especially common in technical, military, business, and policy writing. In plural form ("capabilities"), it typically denotes a set of specific functions or strengths rather than general aptitude. The sense of hidden potential ("she has real capability") carries a mildly appreciative connotation.
Easily confused with capability
"Capacity" refers to the amount that can be contained or produced, or innate potential, while "capability" emphasizes the power or skill to actually perform a specific function.