Verb:
مشغول.
Adjective:
مشغول, مخطوب, غير صبور, قلق, حريص, منفعل, كرس, العاملين لحسابهم, تعلق, منهمكين, فعال, مجتهد, إثارة, نشط, مرهق.
You BUSY? There's somebody out here who wants to meet you.
Wh-Why did you just say you're too BUSY, but...
Look, sir, we are very BUSY here and I just don't...
Oh, I'm sorry, I can't. I'm BUSY.
Tell them you're BUSY.