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1. Blushing from embarrassment. I was completely red-faced when the teacher made me speak in front of the whole class. Oh, Mike definitely likes you—he gets red-faced every time you're around!
2. Having a rosy complexion due to strenuous activity. When I got home from school, I found my father all red-faced and yelling at my brother. I was red-faced after lugging that armchair into the house all by myself.