Definitions for: Up(p)

[adj] out of bed; "are they astir yet?"; "up by seven each morning"
[adj] used up; "time is up"
[adj] (used of computers) operating properly; "how soon will the computers be up?"
[adj] (usually followed by `on' or `for') in readiness; "he was up on his homework"; "had to be up for the game"