a medical discovery of great/major 'importance' [=a very important medical discovery]
The negotiations have taken on added 'importance' in the wake of the bomb attack.
The teacher lectured the students on the 'importance' of mutual respect.
(..) thousand people, craning to get a glimpse this year's Tributes... ...and the Sponsors get to see the Tributes for the first time. The importance of this moment cannot be over stated. They're nice. First cheered on my counting in ... ...... ... Here they are. Here they are. (..)2012 The Hunger Games