Abaft and Astern

Abaft adverb - Near, toward, or in the stern of a ship or the tail of an aircraft.

Astern is a synonym for abaft in behind topic. In some cases you can use "Astern" instead the word "Abaft" as an adverb or an adjective, when it comes to topics like to the rear, aft.

Astern adverb - Near, toward, or in the stern of a ship or the tail of an aircraft.

Abaft is a synonym for astern in backward topic. You can use "Abaft" instead the word "Astern" as an adverb or an adjective or a preposition, if it concerns topics such as aft.