A surname originating as a patronymic. / A male given name transferred from the surname. / A city, the county seat of Crawford County, Illinois. / An unincorporated community in Delaware County, Iowa.

plural of Robinson

A fictional castaway. / (attributive, by extension) Something isolated and independent.

Of a woman: to seduce (a younger man).

An older woman who seduces a younger man.

(chiefly attributive) Anything ingenious (and often complex) but absurdly impractical or even useless.

simple past tense and past participle of Mrs. Robinson

plural of Mrs. Robinson

A census-designated place in Butte County, California, United States.

(mathematics) A finitely axiomatized fragment of first-order Peano arithmetic, lacking the axiom schema of mathematical induction.