Definition of "razor-thin" [ra•zor-thin]

• Extremely fine. So thin that it can almost not be seen. (adjective)
• A very small difference, or advantage, when comparing two items. (adjective)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "I'm an indie publisher with razor-thin margins, and since the vast majority of my customers are online, it just doesn't make sense to end up with a few cents on the dollar per sale, which is what would happen if I were to get this distributed into bookstores."
• "WHAT WENT WRONG: The Cavaliers had a razor-thin margin of error."
• "Webb's razor-thin 2006 victory was fueled by the same basic forces that propelled the Democratic takeover of Congress - broad dissatisfaction with President Bush and the Iraq war, and a big move among the state's independent voters."