The online dictionaries are a bit shit to be honest. What does this signify or mean?
I'm in a house I've never been in before, dressed to the nines in a wedding gown. The gown is beautiful and encrusted with gems of all colours and sizes. The groom is not my IRL husband, but someone I loved very much back in my youth. This person walks into the room, kisses me on the forehead and tells me he loves me very much and leaves.
Not to be morbid, but did you check to see if the person in your dream is still alive? Its almost like the person from your past was giving you their blessing to move on/be happy by the kiss on the forehead