唾
つば · tsuba · JLPT N1 · noun
spit
🥄 つば (tsuba) sounds like 'tsk-bah': the sound you make spitting it out, a wet tsk plus bah
唾 is the spit you make by hitting the floor. Think 'tsuba' as a quick tsk-bah. Saliva and spit share one word, so one sound covers both.