This is the job number. In this case, 446. Host shows the full queue information. Size shows how large the file is, in bytes. In this example it is 363975.
Date shows the date and time the printer entered the queue.
This command is usually used to see if the queue or printing is enabled, and the priority setting for that printer. The third tells you if queuing is enabled or diabled. The fourth tells you if printing is enabled or disabled. Note - if you are opening, or if you notice that print jobs are piling up and nothing is being printed, this is probably the first thing you should check. Make sure that queue and printing are both enabled.