1. to strengthen, support, or increase someone's confidence or self-assurance
The coach's pep talk helped bolster confidence in the team before the big game.
O discurso de incentivo do treinador ajudou a fortalecer a confiança da equipe antes do grande jogo.
2. to provide support or encouragement that makes someone feel more assured
Positive feedback can bolster confidence in young students.
Comentários positivos podem fortalecer a confiança em alunos jovens.