1.
advantages and disadvantages, pros and cons
The beneficial and detrimental aspects of something considered together.
I carefully examined the advantages and disadvantages.
利害得失 = pros and cons, gains and losses
2.
interests, stake
Personal or collective benefits at stake in a situation.
We had a disinterested third party make the judgment.
利害関係 = having a stake/interest in something
USAGE: 利害 is commonly used in business, legal, and political contexts.
COMMON PATTERNS:
- 利害関係 (interests, stake; having an interest in something)
- 利害関係者 (interested party, stakeholder)
- 利害が一致する (interests align)
- 利害が対立する (interests conflict)
CONTRAST:
- 利 alone means benefit/advantage
- 害 alone means harm/damage
- Together, 利害 refers to both sides or overall interests