1. Noun

   pot; jar; vase

   これは彼が最も大切にしているつぼだ。

2. dice cup

3. depression; basin (e.g. of a waterfall)

   see 滝壺

4. aim; what one wants; the mark

   Usually written using kana alonesee 思うつぼ

5. key point (of a conversation, etc.); essence

   Usually written using kana alone

6. acupuncture point; moxibustion point; pressure point

   Usually written using kana alone

7. point that appeals to one's sense of humor; something one finds amusing

   Usually written using kana aloneColloquialsee ツボに入る

8. position on the fingerboard (of a shamisen, koto, etc.)

   Usually written using kana aloneoft. written as ツボ

9. target (when aiming an arrow)

   Archaic

Also written 壷【つぼ】tsubo