To commit money or capital in the hope of financial gain.
To surround, accompany, or attend.
To spend money, time, or energy on something, especially for some benefit or purpose; used with in.
To ceremonially install someone in some office.
To lay siege to.
To be involved in; to form strong attachments to.
To prepare for lost wax casting by creating an investment mold (a mixture of a silica sand and plaster).
To make investments.
To formally give (someone) some power or authority.
To envelop, wrap, cover.
To formally give (power or authority).
An unnamed tropical weather pattern "to investigate" for development into a significant (named) system.
To accumulate personal wealth, especially in an illegal or morally objectionable manner.