The central part of an atom containing protons and neutrons.

An essential or central part of something, often used in a metaphorical sense.

किसी चीज़ का महत्वपूर्ण हिस्सा

English Usage: The nucleus of the team is its experienced players.

Hindi Usage: टीम का नाभिक उसके अनुभवी खिलाड़ी हैं।

A term often used to describe a level or flat surface, such as "an even floor."

समतल

English Usage: Make sure the table is on an even surface to avoid spills.

Hindi Usage: सुनिश्चित करें कि मेज समतल सतह पर है ताकि धटना से बचा जा सके।

An equal or balanced state, often used in reference to mathematical terms or symmetry.