noun
pivot; central point
Refers to the central pin or axis of a folding fan, and by extension any crucial central element.
扇子の要が外れてしまった。
The pivot of the folding fan came off.
noun
Metaphorical extension of the fan pivot: the most important part or person that holds everything together.
彼はチームの要として活躍している。
He is active as the cornerstone of the team.
この政策が改革の要となる。
This policy will be the keystone of the reform.
noun
Japanese photinia
A plant name (Photinia glabra). Usually written in kana as かなめ, and often referred to as かなめのき or 要黐.
See also: 要黐
生け垣にはかなめがよく使われる。
Japanese photinia is often used for hedges.