Interesting explanations of Chinese characters:

齷齪: The gap between teeth is called 齷, the root of the teeth is called 齪.
知識: Recognition is called 知, insight is called 識.
門戶: Double doors are called 門, single doors are called 戶.
衣裳: The upper garment is called 衣, the lower garment is called 裳.
婚姻: The man marries is called 婚, the woman marries is called 姻.
賓客: Invited guests are called 賓, those who come on their own are called 客.
雕琢: Carving is for gold, polishing is for jade.
規矩: Drawing a circle is called 規, drawing a square is called 矩.
書籍: Newly published works are called 書, ancient ones are called 籍.
阡陌: The north-south roads are called 阡, the east-west roads are called 陌.
朋友: Same door is called 朋, same aspiration is called 友.
社稷: 社 refers to the land god, 稷 refers to the grain god.
耳目: Ear refers to hearing, representing information; eye refers to vision, representing surveillance.
骨肉: Bone refers to the strong lineage of the father(, flesh refers to the delicate lineage of the mother).
朋友: Same way is called 朋, same benefit is called 友.
親戚: Father’s clan is called 親, mother’s clan is called 戚.
憤怒: Emitting fire is called 憤, feeling annoyed is called 怒.
饑餓: An empty stomach is called 饑, not eating the right food is called 餓.
皮膚: Genuine leather is called 皮, subcutaneous fat is called 膚.
消化: Physical change is called 消, chemical change is called 化.
墳: A mound of earth without a monument is called 墳, used to bury ordinary people.
墓: With inscriptions on a monument is called 墓, used for officials’ funerals.
流氓: Losing land is called 流, losing a job is called 氓.