From The Collaborative International Dictionary of English v.0.48 [gcide]:
Abdication \Ab'di*ca"tion\, noun [L. abdicatio: cf. F. abdication.] The act of abdicating; the renunciation of a high office, dignity, or trust, by its holder; commonly the voluntary renunciation of sovereign power; as, abdication of the throne, government, power, authority.
From WordNet (r) 3.0 (2006) [wn]:
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Eye and Pyramid BANKING REFORM CHALLENGE