A hanging cloth or curtain; can refer to stage curtains or be used metaphorically for a veil of night or darkness. Often written in kana.
舞台のとばりが上がり、演劇が始まった。
The stage curtain rose and the play began.
山里にとばりが下りて、辺りが静かになった。
A veil of dusk fell over the mountain village and the surroundings grew quiet.
窓にとばりを掛けて外の光を遮った。
I hung a curtain over the window to block out the light.