If you are in possession of something, you have it, because you have
obtained it or because it belongs to you.
Those documents are now in the possession of the Guardian...
We should go up and take possession of the land...
He was also charged with illegal possession of firearms...
Your possessions are the things that you own or have with you at a particular time.
People had lost their homes and all their possessions...
She had tidied away her possessions.
If something retards a process, or the development of something,
it makes it happen more slowly. (FORMAL)
Continuing violence will retard negotiations over the country's future. = slow down
If you describe someone as a retard, you mean that they
have not developed normally, either mentally or socially. (INFORMAL, OFFENSIVE)
What the hell do I want with an emotional retard?