biggest issue
noun phraseUK /ˈbɪɡɪst ˈɪʃuː/
US /ˈbɪɡɪst ˈɪʃuː/
The biggest issue is the most important problem to fix.
The biggest issue with the plan is that it costs too much money.
OTHER MEANINGS
2. The topic people are arguing about the most.
The biggest issue in the debate was how to spend the budget.
3. The thing that matters most in a situation.
For the team, the biggest issue is staying healthy before the final game.
4. The hardest part of a task.
The biggest issue in building the treehouse was lifting the heavy wood.