Compounds of 要

• 要因
  (n,adj-no) main cause
  primary factor
  (P)
• 要害
  (n) stronghold
  strategic position
• 要義
  (n) essence
• 要求
  (n,vs) demand
  firm request
  requisition
  requirement
  desire
  (P)
• 要具
  (n) necessary tools
• 要撃
  (n,vs) ambush attack
• 要訣
  (n) main point
• 要件
  (n) requirement
  important matter
  (P)
• 要港
  (n) important port
• 要綱
  (n) main principle
  gist
  general plan
  guidelines
  outline
  (P)
• 要項
  (n) important points
  (P)
• 要塞
  (n) fort
  stronghold
  fortification
• 要旨
  (n) point
  essentials
  gist
  summary
  fundamentals
  (P)
• 要式
  (n) formal
• 要所
  (n) important point
  important position
  (P)
• 要償
  (n) claim
• 要衝
  (n) important point
  strategic position
  key point
  (P)
• 要職
  (n) important office
  (P)
• 要人
  (n) important person
  (P)
• 要図
  (n) outline
  rough sketch
• 要請
  (n,vs) claim
  demand
  request
  application
  (P)
• 要石
  (n) keystone
• 要説
  (n) outline
  summary
• 要素
  (n) (1) component
  factor
  item (e.g. in list)
  (2) (comp) element (e.g. in array)
  member (e.g. data structure)
  (P)
• 要談
  (n) important talk
• 要地
  (n) important place
  strategic location
• 要頂
  (n) main points
  list of requirements
• 要諦
  (n) important point
• 要点
  (n) gist
  main point
  (P)
• 要否
  (adj-no) necessary or not
  optional (items)