the Triple Intervention of 1895

The Japanese festival for children; a traditional rite of passage and festival day in Japan for three- and seven-year-old girls and three- and five-year-old boys, held annually on November 15. As Shichigosan is not a national holiday, it is generally observed on the nearest weekend. Similar to こどもの日 (Kodomo no Hi, literally “Children's Day”)

tricolour

a calico cat

Used other than figuratively or idiomatically: see 三, 枚, 目. (the third sheet or other flat thing) / a comic character / (by extension) a funny or ridiculous person

using lip service to trick someone

acute triangle (triangle all of the angles of which are acute)

obtuse triangle

the Triassic period

tritium