Word

かなめ
pivot; vital point; cornerstone; keystone; Japanese photinia
Word

よう
cornerstone; main point; keystone; requirement; need; necessary; required
Word

概要

がいよう
outline; summary; overview; abridgment; synopsis
Word

必要

必用
ひつよう
necessary; needed; essential; indispensable; necessity; need; requirement
Word

主要

しゅよう
chief; main; principal; major
Word

重要

じゅうよう
important; momentous; essential; principal; major
Word

要素

ようそ
component; factor; item (e.g. in list); element (e.g. in array); member (e.g. data structure)
Word

要求

ようきゅう
demand; firm request; requisition; requirement; desire
Word

要請

ようせい
appeal; call for something; request; claim; demand; axiom
Word

要塞

ようさい
fort; stronghold; fortification