A female given name transferred from the surname, of modern usage, variant of Riley. / A male given name transferred from the surname, also a modern spelling of Riley.

A surname.

A surname.

(philosophy) The paradoxical situation whereby, if one accepts the cognitivist theory that every action is preceded by a thought, each thought must also be preceded by another thought, and so thinking could apparently never begin.

Of or relating to Gilbert Ryle (1900–1976), British philosopher.

A female given name

A male given name of modern usage.

A habitational surname from Old English. / (rare) A male given name transferred from the surname. / A village in Alberta, Canada, which is the headquarters of Beaver County.

(organic chemistry) Any of a family of compounds, typically dyes, related to perylene

plural of rylene