1. to create, foster, or produce a feeling of optimism or hopefulness in people
The new government policies breed optimism among investors.
As novas políticas do governo geram otimismo entre os investidores.
2. to be a source of or cause optimistic feelings or attitudes to develop
Success in early stages of the project breeds optimism for future outcomes.
O sucesso nos estágios iniciais do projeto gera otimismo quanto aos resultados futuros.