つば

つば
noun
saliva, spit
health
See also: 唾液(だえき) (formal term)
1. saliva, spit
The liquid produced in the mouth. A basic word that Japanese children learn early but which may not appear in formal textbooks.
つばを吐(は)くな。
Don't spit.
つばが飛(と)んだ。
Spit flew (from someone's mouth).
I was nervous and swallowed my saliva.

Kanji: Can be written as 唾(つば).

Common expressions

  • つばを吐(は)く (to spit)
  • つばを飲(の)む (to swallow one's saliva - often from nervousness or anticipation)
  • つばが飛(と)ぶ (spit flies - when speaking emphatically)
  • つばをつける (to put one's spit on - to claim something, like licking food to claim it)

Idiom: 眉(まゆ)につばをつける (to put spit on one's eyebrows) means to be skeptical, based on a belief that this protected against fox possession.

Formal term: 唾液(だえき) is the formal/medical term for saliva.