Used other than figuratively or idiomatically: see as, it, is.
In the actual circumstances (and often contrary to expectations).
Already; without adding further difficulty or complexity.
Used non-literally as an intensifier for figurative statements: virtually, so to speak (often considered incorrect; see usage notes)
Used to intensify or dramatize non-figurative statements.
Word for word; not figuratively; not as an idiom or metaphor.
Used as a generic downtoner: just, merely.