Chair
noun
A chair child is for some reason just a chair. Not sure why it's a child, but it is.
This is a jukugo word that uses the on'yomi readings of the kanji. But the す reading for 子 here is less common and you haven't seen it since 様子, so here's a mnemonic to help you out:
Think about how you broke this chair when you sat on it, so you sue (す) the person who made the chair. (Who happened to be a child, I guess).
この椅子の色違いは置いてますか？
Do you have this chair in any other colors?
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