Means child, son; noun suffix
Memory hook Somewhat resembles the outline of a swaddled baby with her arms out.
Grammar Note
Most nouns in Chinese are combinations of 2, 3 or 4 characters. The character is used as a suffix on single-character nouns to help the reader/listener know that the noun isn't forming a compound with the characters that follow it in the sentence.
女子female (noun suffix)woman, female
子女son femalechildren (sons and daughters)
[1] Asleep in a sea of dots by user texturl from under license: Attribution-Noncommercial-Share Alike 2.0 Generic