Meaning : Stern foremost or backward.
Example :
The steamer went astern at half speed.
Meaning : At or near or toward the stern of a ship or tail of an airplane.
Example :
Stow the luggage aft.
Ships with square sails sail fairly efficiently with the wind abaft.
The captain looked astern to see what the fuss was about.
Meaning : (of a ship or an airplane) behind.
Example :
We dropped her astern on the end of a seven-inch manilla, and she laid comfortably on the ebb tide.
Astern meaning in Bengali (Bangla).