Definition of "Investment" :

noun: the ceremonial act of clothing someone in the insignia of an office; the formal promotion of a person to an office or rank

noun: the act of putting on robes or vestments

noun: the act of investing; laying out money or capital in an enterprise with the expectation of profit

noun: outer layer or covering of an organ or part or organism

noun: the commitment of something other than money (time, energy, or effort) to a project with the expectation of some worthwhile result

"This job calls for the investment of some hard thinking."

noun: money that is invested with an expectation of profit