1.
to serve as both, to combine roles
To fulfill two functions or roles simultaneously. The subject takes on a dual purpose.
この部屋は書斎を兼ねている。
This room doubles as a study.
社長が営業部長を兼ねている。
The company president also serves as the sales director.
散歩を兼ねて買い物に行った。
I went shopping, combining it with a walk.
2.
to be unable to, to find it hard to
Used as a suffix after the stem of another verb (Vます + かねる) to express inability or reluctance to do something, often due to moral hesitation or difficulty. More formal than できない.
それはお答えしかねます。
I'm afraid I cannot answer that.
この提案には賛成しかねる。
I find it difficult to agree with this proposal.
彼の行動は理解しかねるものだった。
His behavior was something I could not understand.
Ichidan verb. Has two distinct usages that learners should master separately.
SENSE 1 PATTERNS:
- AがBを兼ねる (A serves as B as well)
- Aを兼ねてBする (do B while also doing A)
SENSE 2 PATTERN:
- Vます形 + かねる (unable to V / reluctant to V)
This is a polite, indirect way of refusing or expressing inability. Very common in business and customer service.
COMMON COLLOCATIONS:
- 役を兼ねる (hold dual roles)
- ～を兼ねて (also serving as, combining with)
- 判断しかねる (unable to judge)
- 納得しかねる (unable to accept)
RELATED:
- かねない: potential negative form meaning "it could happen" — expresses worry that something undesirable might occur. Opposite nuance from かねる (sense 2).