6.a devoting, using, or giving of time, talent, emotional energy, etc., as for a purpose or to achieve something: His investment in the project included more time than he cared to remember.
7.Biology. any covering, coating, outer layer, or integument, as of an animal or vegetable.
8.the act of
investing with a quality, attribute, etc.
9.investiture with an office, dignity, or right.
10.a
siege or blockade; the surrounding of a place with military forces or works, as in besieging.
11.Also called investment compound. Metallurgy. a refractory material applied in a plastic state to a pattern to make a mold.
12.Archaic. a garment or vestment.
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