slender or narrow

पतला

English Usage: The thin book was easy to carry.

Hindi Usage: पतली किताब ले जाना आसान था।

a place or person from which something comes or originates

स्रोत

English Usage: The source of the river is in the mountains.

Hindi Usage: नदी का स्रोत पहाड़ों में है।

without much substance

हलका

English Usage: The report was rather thin on details.

Hindi Usage: रिपोर्ट विवरण में काफी हलकी थी।

to make something less thick or dense

पतला करना

English Usage: She decided to thin the paint with water.

Hindi Usage: उसने पानी से रंग को पतला करने का फैसला किया।