I love spending time in open-air cafes.

The solution to the problem was open-and-shut.

She is open-minded and always willing to listen to different perspectives.

I love open-ended questions because they allow for more creativity and exploration.

She looked at him with open-eyed astonishment.

She had an open-faced expression when she saw the surprise.

The surgeon performed an open-heart surgery on the patient.

The open-hearth process is a method of steelmaking.

The wide-open field stretched out before us.

The boat sailed across the open ocean.