KanjiJLPT N1
Curtain

curtain, bunting, act of play

Mnemonic

A massive sunflower is embroidered on a towel so enormous it serves as the theater's curtain. Each time the curtain rises, the sunflower seems to bloom under the stage lights, and when it falls, the petals close as if the towel is tucking the audience into darkness.
Additional thoughts
Picture a golden sunflower woven into heavy towel-fabric hanging across the stage. The towel's weight gives it a satisfying dramatic drop between acts, the sunflower design catching the spotlight.
Quick recall
A giant sunflower-embroidered towel is the theater's grand curtain.

Details

The keyword for 幕 is curtain. This kanji refers to a large cloth or screen used to partition, cover, or conceal something, much like a curtain or drape hung in a theater or tent. By extension, it carries the meaning of an act or scene in a play or drama, as each segment is marked by the raising and lowering of a curtain. It is also used in historical and political contexts to refer to a government operating "behind the curtain," as in the shogunate (幕府).
On'yomi
まく、ばく
Kun'yomi
とばり