(n.) a day or one day; (slang) used as part of a prepositional phrase (一日都係) to blame someone (or something or 'a reason') for some negative things that have happened, all because of; owing to; thanks to (e.g. 一日都係你 means "It's all because of you" or "Thanks to you".)
to go
to go to (a place)
to cause to go or send (sb)
(when used either before or after a verb) to go in order to do sth
to be apart from in space or time
(after a verb of motion indicates movement away from the speaker)
(used after certain verbs to indicate detachment or separation)
(of a time or an event etc) just passed or elapsed