1. To create or set up obstacles, boundaries, or restrictions that prevent or limit access, movement, or communication
The company decided to establish barriers to entry for new competitors.
A empresa decidiu estabelecer barreiras à entrada de novos concorrentes.
2. To create psychological or social boundaries to maintain distance or protect oneself
After the betrayal, she began to establish barriers between herself and others.
Após a traição, ela começou a estabelecer barreiras entre si e os outros.
3. To construct physical obstacles or defensive structures
The government erected fences to establish barriers along the border.
O governo ergueu cercas para estabelecer barreiras ao longo da fronteira.