Fica dificil saber sua traduçao pois nao tem um contexto mas vou da alguns frases de uso:
in a high position above the groundThe phone is too high up on the wall for the kids to reach.
Someone who is high up in an organization has an important position in it.Her husband was quite high up in the navy.
On a drug like heroine, cocaine, ecstacy. Usually shortened to high. Usually people high up will exagerate emotions, so a small liking, can become love, and a small disapproval, can become total hate/disgust.http://www.urbandictionary.com/define.php?...high%20uphttp://www.macmillandictionary.com/dictionary/.../high-u...
I hope I've helped you.