Meanings
level (the physical elevation at which something is located or constructed)
Die Pharmakonzerne müssen ihre Preise nun drei Jahre lang auf dem Niveau vom Sommer 2009 einfrieren.The pharmaceutical companies now have to freeze their prices for three years at the level of summer 2009.
the degree to which something is sophisticated, dignified or intellectual (of conversations, debates, etc.)
Sie äußert sich zu einer zentralen Zukunftsfrage, allerdings ohne jede Sachkenntnis. Man kann darin das Niveau der Debatte erkennen.She weighs in on a central issue regarding the future, but without any understanding of the matter. This is indicative of the level of debate on show for this discussion.
the level of performance (e.g. of an athlete)
Die Mannschaft spielte eine starke erste Halbzeit, konnte das Niveau aber nicht halten.The team played a strong first half, but wasn't able to keep up the level of play.