1. An economic or industrial sector that is open to competition, foreign investment, or public access
The government opened the telecommunications sector to private companies.
O governo abriu o setor de telecomunicações para empresas privadas.
2. A business area or field that operates without restrictions or barriers to entry
The tech sector remains an open sector for startups and innovation.
O setor de tecnologia continua sendo um setor aberto para startups e inovação.