甜点 means "dessert" and refers to sweet dishes or snacks typically served after a meal or enjoyed as treats. It is the standard term used in restaurants, bakeries, and everyday conversation.
饭后我们去那家店吃甜点吧。
fàn hòu wǒmen qù nà jiā diàn chī tiándiǎn ba.
After the meal, let's go to that shop for dessert.
她最喜欢的甜点是提拉米苏。
tā zuì xǐhuān de tiándiǎn shì tílāmǐsū.
Her favorite dessert is tiramisu.
这家咖啡馆的甜点做得特别精致。
zhè jiā kāfēiguǎn de tiándiǎn zuò de tèbié jīngzhì.
The desserts at this café are made especially exquisitely.