(biochemistry) threonine

(archaic) tangled thread or yarn

(archaic) tangled thread / (historical, archaic) a type of straw sandals worn by government officials during the Nara period [8th century]

(cooking) fish fillet

International Date Line (line on the Earth's surface)

one day, 24 hours / the daytime, the period from dawn until dusk / (figuratively) a short period of time / one day, someday, an unspecified day / the first day of the month

a birthday

regular day off (e.g. closed every Monday)

the twentieth day of the month / twenty days / Short for 二十日鼠 (hatsuka nezumi): a house mouse

幾日も幾日も: day after day