How to write 亥

亥 [hài] 1. 地支的末一位，属猪。 (The last of the twelve Earthly Branches, belongs to the Pig.) 2. 用于计时。 (Used for timekeeping.) 3. 用于计时：晚上九点至十一点。 (Used for timekeeping: from 9 PM to 11 PM.) 【本义】:猪 (Original meaning: pig.) 【造字法】:象形。甲骨文字形，与“豕”的写法相似，象猪形。古代“亥”与“豕”很容易写混，成语:“鲁鱼亥豕”讲的就是这种误写现象。 (Character formation: pictographic. The shape in oracle bone script resembles ‘豕’ and depicts a pig. In ancient times, "亥" and "豕" were easily confused in writing. The idiom “鲁鱼亥豕” speaks of this writing confusion.) 同本义 (Pig; swine.) 引 1. 《吕氏春秋·慎行论》：豕与亥相似。 (From "Lüshi Chunqiu - On Cautious Conduct": "Shǐ and Hài are similar.") 2. 《论衡·物势》：亥，豕也。 (From "Lunheng - On Material Forces": "Hài is the same as shǐ.") 3. 《左传·襄公三十年》：亥即豕，故曰首曰身也。 (From "Zuo Zhuan - 30th Year of Duke Xiang": "Hài is equivalent to shǐ, hence it is said to be head and body.") 与天干相配，用以纪年 (Used to match with the Heavenly Stems for recording years.) 用于纪月，农历十月为亥 (Used for recording months, the tenth month of the lunar calendar is Hài.) 与天干相配，用以纪日 (Used to match with the Heavenly Stems for recording days.) 用于纪时，即夜里九点至十一点 (Used for timekeeping, specifically from 9 PM to 11 PM.) 十二生肖属猪 (Belongs to the Pig in the twelve zodiac animals.)