The word 出生 is formed by combining two characters that sequentially depict the act of birth. The first character, 出, means "to exit" or "to emerge from", visually suggesting something coming out. The second, 生, means "to be born" or "life", representing the state of coming into existence. Together, they create a logical and visual process: first, the physical emergence (出), followed immediately by the commencement of life (生), perfectly encapsulating the single event of being born.