1. to take action that prevents or changes the expected or desired result of something
The referee warned the player not to interfere with the outcome of the match.
O árbitro advertiu o jogador para não interferir no resultado da partida.
2. to meddle in or obstruct a process, decision, or event
External factors should not interfere with the outcome of the experiment.
Fatores externos não devem interferir no resultado do experimento.