#4 - Acumen

 

acumen \uh-KYOO-muhn; AK-yuh-muhn\, noun:
Quickness of perception or discernment; shrewdness shown by keen insight.

With Leo's rare combination of editorial acumen and business know-how, he might have become a publishing giant had he not permitted his drinking and gambling to hold him back.
-- Ellis Amburn, Subterranean Kerouac: The Hidden Life of Jack Kerouac

Source: Dictionary.com/Word of the Day Archive/acumen