1. A specific or individual problem that affects a person, group, or situation distinctly
Each student has their own particular problem that needs to be addressed.
Cada aluno tem seu próprio problema particular que precisa ser abordado.
2. A unique difficulty or challenge that is distinct from general or common issues
The company's particular problem was managing cash flow during the recession.
O problema particular da empresa era gerenciar o fluxo de caixa durante a recessão.