Referring to living organisms that are typically mobile and feed on organic matter.

जीव-जंतु

English Usage: The animal ran swiftly through the forest.

Hindi Usage: जंतु जंगल में तेजी से दौड़ा।

A substance used for reducing friction between surfaces in mutual contact.

चिकनाई

English Usage: The mechanic applied lubricant to the engine to ensure smooth operation.

Hindi Usage: मैकेनिक ने इंजन में चिकनाई लगाई ताकि यह सुचारू रूप से चले।