To hold = tener la reunión To arrange = planear la reunión

as per my knowledge, You arrange a meeting before it takes place. Then, you hold it.

I arranged a meeting for next tuesday. It will be held in conference room #108

I arranged a meeting on Monday. I decided who should attend. I wrote an agenda for the topics that should be discussed. I reserved a conference room for Thursday afternoon. I sent out memos telling people to come. On Thursday, I held the meeting. I held the meeting I had arranged. I sat at the head of the conference table. I waited for people to come in. I said "OK, we have enough people here, let's get started now. Raymie will begin by bringing us up to date on the status of the project..." That is "holding" a meeting.