1. (vt) reunir - it won't be hard to muster an audience: no será difícil reunir público suficiente people

2. (vt) - he mustered (up) the courage to refuse: se armó de valor y se negó I mustered (up) the strength to carry on: saqué fuerzas de flaqueza para seguir adelante courage, strength

1. (vi) reunirse, agruparse to gather

1. (n) - it'll just about pass muster: es pasable