to save sb's life; (interj.) Help!; Save me!
救 (jiù) · 11 strokes
Phonosemantic compound. 攵 represents the meaning and 求 represents the sound.
命 (mìng) · 8 strokes
Phonosemantic compound. 口 represents the meaning and 令 represents the sound and meaning. Based on the original meaning "command". The meaning later shifted to "fate" and "life".