Definition of "dethrone" [de•throne]

• To remove from the throne; depose. (verb-transitive)
• To remove from a prominent or powerful position. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The FTC's new labels dethrone the watt as the primary measure of a bulb's effectiveness and replace it with the lumen as a measure of light output."
• "Can "King Kong" dethrone "Titanic" as the biggest movie of all time?"
• "Tila Tequila has reportedly claimed that she wants to "dethrone" Perez Hilton with her new gossip blog."