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.
Abaft ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Abaft ka matlab kya hota hai?