姿勢(しせい)

posture; attitude

後(うし)ろ姿(すがた)

figure seen from behind

立(た)ち姿(すがた)

standing figure

姿見(すがたみ)

full-length mirror

姿(すがた)を消(け)す

to disappear; to vanish

容姿(ようし)

appearance; looks

姿形(すがたかたち)

figure and form; appearance

後(うし)ろ姿(すがた)がとてもきれいだった。

Their figure from behind was very beautiful.

姿勢(しせい)を正(ただ)して、先生(せんせい)の話(はなし)を聞(き)きました。

I straightened my posture and listened to the teacher.