Tachism is a 7 letter English word. It's valid Scrabble word worth 14 points. It's valid Words with friends word worth 15 points.
You can make 242 anagrams from letters in tachism (achimst).
1950-55; French tachisme, equivalent to tache spot, (Vulgar Latin *tacca, probably Gothic taikns mark, akin to token) + -isme -ism