It means to gather together things, such as soldiers are mustered for duty. It can also be used by an individual to mean to gather courage. Such as to muster the courage to face the judge.
In context, "to gather up".
The phrase that best defines "muster" is to gather or assemble (troops, people, etc.), especially for inspection or preparation for battle. It can also refer to summoning up a particular quality or feeling, such as courage or enthusiasm. In a broader sense, "muster" can mean to bring forth or produce something, like muster up the strength to complete a difficult task.
I could not muster up the courage to touch the snake.
He was tired but he had to muster up enough strength to get the job done.
The noun 'muster' is a standard collective noun for:a muster of crowsa muster of peacocksa muster of soldiersa muster of storks
A muster of Crows and a muster of Peacocks
MOP = Muster Out Pay
It means to gather together things, such as soldiers are mustered for duty. It can also be used by an individual to mean to gather courage. Such as to muster the courage to face the judge.
It means for all the troops to come together
A flock of peacocks and peahens is called a Party.
Muster
Muster means to be accounted. On ship this would be Quarters and is held each morning. A role is taken and absences reported to the ship's office.