To become or make something red in color, often in a swift or intense way.
"Redden" Examples
Example Sentences:
Her cheeks redden with excitement when she first heard the news. The town redden with beautiful flowers in the spring season. The engineer carefully surveyed the painting before adding spots to redden the repair zone. Cold air redden her face and body after a couple minutes. Once they're mixed with a little bit of water, they'll stop and even redden with age.