In a company, there are various ranks of positions. And some people are working in a higher position than me.
Is there any word indicating anyone working in a higher position than me?
He/she can work inside in the same team or he/she might not, just only in the same company. He can be just above you or he can work at a much higher position.
He is my ______.
What is a suitable word for the blank?
I've been doing googling and I come across the word 'superior'. Is this a suitable word? Or, is it unsuitable to indicate someone by rank? Is it ok to address him 'my colleague'?