1. In sports (particularly football/soccer), to close the distance between defenders and attackers to limit time and space for play
The defense needs to shrink the space when the opponent gets near the goal.
A defesa precisa reduzir o espaço quando o adversário se aproxima do gol.
2. To reduce the physical or metaphorical distance in a given situation
We should shrink the space between our two offices to improve communication.
Devemos reduzir o espaço entre nossos dois escritórios para melhorar a comunicação.