PRONUNCIATION:

(uh-POS-uhl) 

MEANING:

noun: A strong supporter or pioneer of a policy, cause, or belief.

ETYMOLOGY:

From Greek apostolos (messenger). Earliest documented use: 950.

USAGE:

“Romney is the frontman and apostle of an economic revolution, in which transactions are manufactured instead of products, wealth is generated without accompanying prosperity, and Cayman Islands partnerships are lovingly erected and nurtured while American communities fall apart.”
Matt Taibbi; Greed and Debt: The True Story of Mitt Romney and Bain Capital; Rolling Stone (New York); Aug 29, 2012.