(Noun) someone or something that takes the lead in a group or movement.
(Noun) sheep that leads the herd often wearing a bell
(Noun) the act of organized spying, usually with the goal of uncovering sensitive military or political information.
To describe a person or a solution that takes a realistic approach
Oblivion is the state of being forgotten or disregarded
Not quick or alert in perception, feeling, or intellect; not sensitive or observant; dull.