Natural - In Blackjack, a two-card hand totaling 21.

Negative Expectation - Theoretical term for an expected gambling loss over a long period of time. See House Edge.

Net Winnings - Total winnings, minus your original wager. Opposite of Gross Winnings.

Nickel - A $5 chip.

Non-Negotional Chip - A promotional chip which cannot be exchanged for cash.

Non-Value Chip - A chip whose value is determined by the amount of the Buy In, as opposed to a fixed value chip.

Number Pool - The entire range of numbers on offer in a game like Keno.

Nut - The amount of money a gambler decides to win before quitting.