Acceptable; permissible; allowed — often used in short notices or as a suffix like '〜可' to indicate permission.
この教室は飲食可です。ただしゴミは持ち帰ってください。
Eating and drinking are allowed in this classroom. However, please take your trash home.
写真撮影可の展示と不可の展示があるので注意してください。
Please note there are exhibits where photography is allowed and others where it is not.
申請書に『可』と書かれれば、許可されたことを意味する。
If the application form is marked with '可', it means it has been approved.
Approval; being in favour — in votes, '可' can indicate an affirmative vote (aye).
採決の結果は可が多数で、その案は可決された。
The vote resulted in a majority of ayes, and the proposal was approved.
議題について可・不可を挙げて集計した。
We tallied the votes for and against on the agenda item.
A passing grade (on a scale like Excellent/Good/Pass), where '可' indicates pass but not a high mark (roughly C/D).
期末試験の成績は優・良・可の評価で、私は可だった。
Final grades were given as Excellent/Good/Pass, and I received a Pass.
このコースでは可は最低の合格基準を意味することが多い。
In this course, 'Pass' often denotes the minimum passing standard.