Noun

• S: (n) bloom, blush, flush, rosiness (a rosy color (especially in the cheeks) taken as a sign of good health)
• S: (n) blush, flush (sudden reddening of the face (as from embarrassment or guilt or shame or modesty))

Verb

• S: (v) blush, crimson, flush, redden (turn red, as if in embarrassment or shame) "The girl blushed when a young man whistled as she walked by"
• S: (v) blush (become rosy or reddish) "her cheeks blushed in the cold winter air"