Wave is a disturbance or oscillation that travel through space and matter,transfering energy from one point to another without permanent displacement of the medium itself.

Am i correct?

Yes but this is a simple way to define it wave is a disturbance that transfers energy from one point to another through a medium with via average position of particles of medium remaining constant.for example take a stone and drop into a calmpond ripples are seen spreading on the surface of the water from the point source, the water does not move in the direction of the ripple.