principal
adj.› ⇨ chief
⇨ main
Este es el edificio principal This is the main building
⇨ principal
Eso fue la razón principal para mudarme That was my principal reason for moving
⇨ central
⇨ leading
el actor principal the leading actor
⇨ major
Tocó las canciones principales en el concierto He played his major songs at the concert
⇨ prime
el principal sospechoso en una investigación por homicidio the prime suspect in a murder investigation
›piso principal first floor