A word or group of words that describes the subject of a sentence or clause.

वाक्य या उपवाक्य के विषय का वर्णन करता है।

English Usage: In the sentence "The sky is blue," "is blue" serves as the predicator.

Hindi Usage: वाक्य "आसमान नीला है" में "नीला है" वाक्य का predicator है।