n. 1 personal interest in a state of affairs, usu. with an expectation of gain. 2 Law interest (usu. in land or money held in trust) recognized as belonging to a person. vestibule i” vesti,bju:1/ n. 1 hall or lobby of a building. 2 US enclosed space between railwaycarriages. [Latin] vestige tvestid3/ n. 1 trace; sign. 2 slight amount; particle. 3 atrophied part or organ of an animal or plant that was