Value bet
A value bet is a bet you make with a strong hand hoping to get called by worse hands, so you win more chips when you're already ahead.
The goal is the opposite of a bluff. Instead of trying to make a better hand fold, you want a weaker hand to call so you profit when you're likely the best hand. Every chip a worse hand pays you is value you'd miss out on if you just checked.
This comes up most when you've made a good but not unbeatable hand and you think an opponent holds something they'll call with, like a weaker pair or a draw. The sizing question is finding the largest bet a worse hand will still pay off: too big and they fold, too small and you leave chips on the table. Being last to act helps, since you get to see what your opponent does before deciding.
A common beginner mistake is checking strong hands because betting feels scary, which quietly costs you chips over time. Ask yourself one question before you bet: what worse hand can call me? If the honest answer is none, it's usually a check or a bluff spot instead. Stack enough small value bets together and they add up to a big chunk of your winnings.
Example
You hold A-Q on a board of A-9-4-2, giving you top pair with a strong kicker. You bet about two-thirds of the pot expecting a worse ace or a middle pair like 9-8 to call, so you collect extra chips while you're ahead.