The definition of inbound is something that moves inward. An example of inbound is the freeway that goes toward the city center. 1  traveling or going inward.  Basketball inbounds.
Mass is a measurement of how much matter is in an object. Mass is a combination of the total number of atoms, the density of the atoms, and the type of atoms in an object. How to Measure Mass.
mass adjective [not gradable] (LARGE AMOUNT). âº âinvolving or having an âeffect on a âlarge ânumber of âpeople or things: âweapons of mass âdestruction They âhope the new âmovie will âappeal to a mass âaudience.