(w)

(bì) certainly; must; will; necessarily

必不可少 (w)

(bìbùkěshǎo) absolutely necessary; indispensable; essential

必不可少组成 (w)

(bìbùkěshǎozǔchéng) absolute necessity; sine qua non

必修 (w)

(bìxiū) a required course

必修课 (w)

(bìxiūkè) required course; compulsory course

必备 (w)

(bìbèi) essential

必胜客 (w)

(bìshèngkè) Pizza Hut

必和必拓 (w)

(bìhuóbìtuò) BHP Billiton (Anglo-Australian mining corporation)

必定 (w)

(bìdìng) be bound to; be sure to

必将 (w)

(bìjiāng) inevitably

必得 (w)

(bìděi) must; have to

必应 (w)

(bìyìng) Bing (search engine)

必死之症 (w)

(bìsǐzhīzhèng) terminal illness; incurable condition (also fig.)

必然 (w)

(bìrán) inevitable; certain; necessity

必然结果 (w)

(bìránjiéguǒ) inevitable outcome; inescapable consequence

必由之路 (w)

(bìyóuzhīlù) the road one must follow or take; the only way

必经 (w)

(bìjīng) unavoidable; the only (road, entrance etc)

必要 (w)

(bìyào) necessary; essential; indispensable; required

必要性 (w)

(bìyàoxìng) necessity

必要条件 (w)

(bìyàotiáojiàn) requirement; necessary condition (math)

必需 (w)

(bìxū) to need; to require; essential; indispensable

必需品 (w)

(bìxūpǐn) necessity; essential (thing)

必须 (w)

(bìxū) to have to; must; compulsory; necessarily