Shared meanings dissolve as social groups become more diverse. [causal]
The extent to which this is true for morally and politically loaded words such as "liberty" is likely to vary with time, place, and culture. Take, for example, the transformation of the "honor codes" at various venerable universities. These codes were phrased in quite general terms at their inception in the 18th and 19th centuries because these schools contained homogeneous student bodies who shared a common conception of the type of conduct definitionally incorporated within the word "honor." If a person thought that purchasing a term paper from a professional term paper service was consistent with being honorable, then that person simply did not know what "honor" meant. As values have changed and as student bodies have become less homogeneous, however, shared definitions of terms such as "honor" have broken down. Some people now do think that buying a term paper can be honorable, and this breakdown in shared meaning has caused general references to "honor" to be displaced in such codes by more detailed rules. There may now be little shared agreement about what the precept "be honorable" requires, but there is considerable agreement about what the rule "do not purchase a term paper" requires.
XREF: Connects to general linguistics/semantics on how vague terms require shared context, and to sociology of moral vocabulary.
Frederick Schauer, Frederick Schauer - Formali…, loc. 27