She noticed her cheeks reddening as she listened to the unexpected compliment.

The reddening of the leaves each autumn always takes me by surprise.

The dermatologist noted several reddenings on the patient's forearms after the allergic reaction.

The reddener at the festival was the bonfire, which flushed everyone's cheeks with a warm glow.

The dermatologist noted that certain reddeners in the cream were causing widespread facial flushing.

As the sun set, the clouds began to redden, casting a warm glow over the valley.

The old maple tree reddens every autumn, its leaves turning a brilliant crimson.

After hours working in the garden without a hat, Sarah's neck reddened and she applied aloe vera.

The reddened apple lay on the table, catching the morning light.

Redden accepted the invitation to speak at the conference without hesitation.