质子 zhìzǐ proton Origin Definitions Defs Strokes Stroke Words Sentences Sents zhìzǐ proton 质 質 zhì nounaffix substance (bound form) physical matter; substance; the material essence of an object子 zǐ noun seed (bound form) seed; kernel; egg; small and hard object or pelletzhìzǐ hostage prince 质 質 zhì noun hostage (bound form) a person or thing held as a pledge or security; a hostage子 zǐ noun son (bound form) son; child; offspring