Word: 必 (bì) 必 dictionary entry bì certainly; must; will; necessarily Full dictionary entry for 必 Example sentences using 必 2 sentences, showing page 1 of 1. 有起必有落。 Yǒu qǐ bì yǒu luò. What goes up must come down. 每个人都必有一死。 Měige rén dōu bì yǒu yì sǐ. All men must die.