A blush is when your face gets slightly red because you feel embarrassed or shy.
When people talk about blushing, they often think of it as a natural reaction to something awkward. Maybe someone gives them a compliment and they feel too proud to accept it, so their cheeks get a little pink. Or maybe they're caught off guard by a joke that's just a bit too silly. Blushing can also happen when you're feeling self-conscious about something - like wearing new clothes in public or making a mistake in front of others. It's not always a bad thing to blush, though - it means you're aware of your emotions and responding to the situation naturally. Some people are more prone to blushing than others, but it's usually just a harmless sign that someone is feeling a bit flustered.
To become red in the face (and sometimes experience an associated feeling of warmth), especially due to shyness, shame, excitement, or embarrassment.
Example: He wasn't used to this much attention, so he blushed as he saw dozens of pairs of eyes watching him.
