To extend outwards or project from a surrounding surface.

To appear suddenly or unexpectedly.

अचानक प्रकट होना

English Usage: A curious expression protruded on his face when he saw the surprise.

Hindi Usage: जब उसने सरप्राइज देखा, तो उसके चेहरे पर एक जिज्ञासु अभिव्यक्ति प्रकट हुई।