academic society; learned society; academic conference
Refers both to an organization of scholars (e.g., 日本物理学会) and to a meeting/conference held by such a society. Context usually makes the meaning clear.
彼は日本物理学会の会員です。
He is a member of the Physical Society of Japan.
来月、国際学会で発表する予定です。
I plan to present at an international academic conference next month.
Next month, she will present her research findings at an international academic conference.
Many researchers attend this academic conference every year.
There are plans to hold an international academic conference in Tokyo next year.
That academic conference is held in a different city each year.