亥 - sign of the hog, 9-11PM, twelfth sign of the Chinese zodiac

the Boar (twelfth sign of the Chinese zodiac); the Pig

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)

miswriting a word; using the wrong kanji to write a word

day of the Boar

year of the Boar

hour of the Boar (around 10pm, 9-11pm, or 10pm to 12 midnight)

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)

year of the Boar; year of the Pig

day-of-the-Boar mochi (made with new grains)

northwest