a large quantity or amount of something

मात्रा

English Usage: The mass of the object affected its gravitational pull.

Hindi Usage: वस्तु की मात्रा ने इसके गुरुत्वाकर्षण को प्रभावित किया।

a reduction or decrease

कमी

English Usage: The decrement in temperature was noticeable during the night.

Hindi Usage: रात के दौरान तापमान में कमी स्पष्ट थी।

to decrease or diminish

घटाना

English Usage: The company decided to decrement its production rate to save costs.

Hindi Usage: कंपनी ने लागत बचाने के लिए अपने उत्पादन दर को घटाने का निर्णय लिया।