Bloom means to produce flowers. When a rose bush blooms in spring, buds open into colorful flowers. Cherry trees bloom with clouds of pink and white blossoms. Some plants bloom for just a few days each year, while others bloom all summer long.

The word can also describe someone who is thriving or flourishing. A student might bloom in a new school where they finally feel confident and make friends easily. An athlete might bloom under a supportive coach, suddenly showing skills no one knew they had. When someone says a person is “in full bloom,” they mean that person is at their best, most vibrant stage.

You might also hear bloom used as a noun: “The garden is in bloom” means flowers have opened. People sometimes describe a healthy glow on someone's face as a bloom, like the natural brightness in your cheeks after playing outside on a cold day.

Blooming can even work as a gentle intensifier in British English, similar to saying “really” or “very,” though this usage sounds old-fashioned today. A character in a classic novel might exclaim, “That's a blooming good idea!”