the quality of not putting yourself first but being willing to give your time or money or effort etc. for others; "rural people show more devotion and unselfishness than do their urban cousins"
the magnitude of sound (usually in a specified direction); "the kids played their music at full volume"
a publication that is one of a set of several similar publications; "the third volume was missing"; "he asked for the 1989 volume of the Annual Review"
the amount of 3-dimensional space occupied by an object; "the gas expanded to twice its original volume"
a relative amount; "mix one volume of the solution with ten volumes of water"
a method of surveying; the area is divided into triangles and the length of one side and its angles with the other two are measured, then the lengths of the other sides can be calculated
a trigonometric method of determining the position of a fixed point from the angles to it from two fixed points a known distance apart; useful in navigation