必需

Chinese

		certainly; must; will certainly; must; will; necessarily	to require; to need; to want to require; to need; to want; necessity; need
trad. (必需)		必	需
simp. ^#(必需)		必	需

Mandarin
- (Standard Chinese)
  - Hanyu Pinyin: bìxū
  - Zhuyin: ㄅㄧˋ ㄒㄩ
  - Tongyong Pinyin: bìsyu
  - Wade–Giles: pi⁴-hsü¹
  - Yale: bì-syū
  - Gwoyeu Romatzyh: bihshiu
  - Palladius: бисюй (bisjuj)
  - Sinological IPA ^(key): /pi⁵¹ ɕy⁵⁵/
  - Homophones:
    [Show/Hide]
    ^edit
    ^edit
    必需
    必須 / 必须
Cantonese
- (Standard Cantonese, Guangzhou–Hong Kong)
  - Jyutping: bit¹ seoi¹
  - Yale: bīt sēui
  - Cantonese Pinyin: bit⁷ soey¹
  - Guangdong Romanization: bid¹ sêu¹
  - Sinological IPA ^(key): /piːt̚⁵ sɵy̯⁵⁵/
  - Homophones:
    ^edit
    ^edit
    必需
    必須 / 必须
Northern Min
- (Jian'ou)
  - Kienning Colloquial Romanized: bĭ-sṳ́
  - Sinological IPA ^(key): /pi²⁴ sy⁵⁴/
Southern Min
- (Hokkien: Xiamen, Quanzhou, General Taiwanese)
  - Pe̍h-ōe-jī: pit-su
  - Tâi-lô: pit-su
  - Phofsit Daibuun: pitsw
  - IPA (Xiamen, Taipei, Kaohsiung): /pit̚³²⁻⁴ su⁴⁴/
  - IPA (Quanzhou): /pit̚⁵⁻²⁴ su³³/
- (Hokkien: Zhangzhou)
  - Pe̍h-ōe-jī: pit-si
  - Tâi-lô: pit-si
  - Phofsit Daibuun: pitsy
  - IPA (Zhangzhou): /pit̚³²⁻⁵ si⁴⁴/
- (Teochew)
  - Peng'im: big⁴ su¹
  - Pe̍h-ōe-jī-like: pik su
  - Sinological IPA ^(key): /pik̚²⁻⁴ su³³/

必需

必須／必须 (bìxū) is used for subjective requirements, while 必需 (bìxū) is used for objective requirements.

必需

/pit͡sud͡ʑu/ → /fit͡sud͡ʑu/ → /hit͡sud͡ʑu/

From Middle Chinese compound 必需 (pjit sju, literally “necessary + need, require, demand”). Compare modern Min Nan reading pit-su.

必(ひつ)需(じゅ) • (hitsuju)

^ Matsumura, Akira, editor (2006), 大辞林 [Daijirin] (in Japanese), Third edition, Tokyo: Sanseidō, →ISBN