In intransitive terms the difference between capitalize and invest
is that capitalize is to profit or to obtain an advantage while invest is to make investments.
As verbs the difference between capitalize and invest
is that capitalize is in writing or editing, to write (something: either an entire word or text, or just the initial letter(s) thereof) in capital letters, in upper case while invest is to clothe or wrap (with garments).
As a noun invest is
an unnamed tropical weather pattern "to investigate" for development into a significant (named) system.
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