挺身 Traditional form: 挺身 Pinyin (reading): tǐngshēn Definitions: to straighten one's back Characters: 挺 - to straighten, to stand upright; rigid, stiff 身 - body, torso; person; pregnancy Traditional characters: 挺 - to straighten, to stand upright; rigid, stiff 身 - body, torso; person; pregnancy