sign of the hog, 9-11PM, twelfth sign of the Chinese zodiac
亥 centers on the twelfth sign of the Chinese zodiac, the boar or hog, and the associated time period of 9–11 PM. Its meanings are culturally specific rather than describing a physical object or action.
亥 is an ancient pictograph representing a boar or hog, used as the twelfth zodiac sign. The modern form is highly stylized, and the exact visual connection to the animal is no longer obvious.
The top 亠 looks like a roof, and the bottom 人 suggests a person. Imagine a person under a roof at night (9–11 PM), counting the hours until the boar sign arrives.
For ガイ, picture a guy dressed as a boar for a zodiac festival: guy -> ガイ, and the boar sign is the guest of honor.
the Boar (twelfth sign of the Chinese zodiac); the Pig
northwest
Fire Boar (24th term of the sexagenary cycle, e.g. 1947, 2007, 2067)
Wood Boar (12th term of the sexagenary cycle, e.g. 1935, 1995, 2055)
hour of the Boar (around 10pm, 9-11pm, or 10pm to 12 midnight)
day of the Boar in the month of the Boar (the 10th month in the lunar calendar)
Day-of-the-Boar Festival
day-of-the-Boar mochi (made with new grains)
year of the Boar
day of the Boar
year of the Boar; year of the Pig
tenth month of the lunar calendar
Earth Boar (36th term of the sexagenary cycle, e.g. 1959, 2019, 2079)
Water Boar (60th term of the sexagenary cycle, e.g. 1923, 1983, 2043)
Metal Boar (48th term of the sexagenary cycle, e.g. 1911, 1971, 2031)
Xinhai Revolution (of China; 1911)
miswriting a word; using the wrong kanji to write a word