After

Later; second (of two); next, following, subsequent

(where the frame of reference is within the ship) At or towards the stern of a ship.

"The after gun is abaft the forward gun."

Behind; later in time; following.

"I left the room, and the dog bounded after."

Subsequently to; following in time; later than.

"The Cold War began shortly after the Second World War."

Behind.

"He will leave a trail of destruction after him."

In pursuit of, seeking.

"He's after a job; run after him; inquire after her health."

In allusion to, in imitation of; following or referencing.

"We named him after his grandfather; a painting after Leonardo da Vinci."

Signifies that the action of the clause it starts takes place before the action of the other clause.

"I went home after we had decided to call it a day."