Source : Webster's Revised Unabridged Dictionary (1913)

Subjugation \Sub`ju*ga"tion\, n. [Cf. F. subjugation, LL.
   subjugatio.]
   The act of subjugating, or the state of being subjugated.

Source : WordNet®

subjugation
     n 1: forced submission to control by others [syn: {subjection}]
     2: the act of subjugating by cruelty; "the tyrant's oppression
        of the people" [syn: {oppression}]
     3: the act of conquering [syn: {conquest}, {conquering}, {subjection}]