ऐश वृक्ष  =  ash tree
A tree commonly found in forests, with grey bark and hard wood

राख  =  powder
Don't drop cigaratte ash on the carpet.

राख  =  remains
Volcanic ash./don't drop cigarette ash on the carpet.

ऐश वृक्ष की लकड़ी  =  wood
Ash is used for making tool handles.

ऐश वृक्ष की लकड़ी  =  wood, ash tree
Ash's wood, used for making eg tool handles