Describing something beautiful:
* The sunset was lovely, painting the sky in hues of orange and purple.
* She wore a lovely dress, its floral pattern catching the sunlight.
Expressing appreciation:
* Thank you for the lovely gift, I'll cherish it forever.
* It was lovely meeting you, I hope we can do it again soon.
Describing a pleasant feeling:
* It was a lovely day for a picnic, the air was warm and the breeze was gentle.
* She had a lovely smile that could brighten anyone's day.
Using it as a polite adjective:
* "You look lovely today," he said, offering her a compliment.
* "That's a lovely idea," she replied, agreeing with his suggestion.
You can use "lovely" in a variety of ways to express appreciation, beauty, and pleasantness.