Which of these is not a British value?

The value that stands out for being not explicitly defined as a "British value" is related to the concept of equality and diversity within the context presented here. While equality and diversity are essential principles that are upheld within British society and legislation, they are often considered as outcomes or goals of the political and legal frameworks rather than foundational British values themselves.

Democracy, individual liberty, and the rule of law are established as key British values, prominently enshrined in political discourse and education. Democracy allows for governance by the people through elected representatives, individual liberty emphasizes personal freedom within the bounds of the law, and the rule of law ensures that laws apply uniformly to all individuals.

In contrast, equality and diversity, while critical in modern societal frameworks, focus more on how democratic values and legal principles should operate in practice and be respected among the populace. They are thus seen more as the social responsibilities that arise from the foundational values of democracy, liberty, and the rule of law rather than being foundational values in themselves.