I have just asked about the equivalent of 'secret' at th AL forum, but I started wondering: is the concept in itself negative, or does it only have a negative or positive connotation? I suppose the concept itself cannot be called negative, though we tend to associate hiding, covering (up !) with "negative things", I suppose... Or is it typical of any fundamental concept (if that exists) that it can be used in a positive and a negative way (dual use, like with some weapons that prove useful in pacifist contexts ???)? Just wondering, hope for explanation; and of course it would be great if someone could refer to sites or linguistic branches where that is examined or explained.