凸tūTop 20000Meanings1. to stick out; protruding; convex; male (connector etc)2. Taiwan pr. túCharacters used凸convexExamples2人生rénshēng不是bùshì凸tū的de。Life is not convex.如果rúguǒ人生rénshēng是shì凸tū的de，那nà我们wǒmen可以kěyǐ优化yōuhuà它tā。If human life is convex, we can optimize it.