adj. १ (as, being the chief, guiding or principal one) मुख्य(as in : masterclockमुख्यघड्याळ), प्रधान (as in : master joint प्रधानसंधि, प्रधानसांधा) २ (as, controlling) नियंत्रक(as in : master circuit नियंत्रक परिपथ) ३ सर्वस्पर्शी (as in : master sample सर्वस्पर्शी प्रतिदर्श) ४ (as, : being a mechanical part or a device that establishes a dimension weight, or other standerd) गुरु (as in : master gauge गुरु प्रमापी)