Coal that has been subjected to burning for energy or heating.

Referring to coal that has been turned to ash through combustion processes.

दहन प्रक्रियाओं के माध्यम से राख में बदल दिया गया कोयला।

English Usage: The burnt coal left behind a thick layer of ash.

Hindi Usage: जलाए गए कोयले ने पीछे एक मोटी राख की परत छोड़ दी।