Dictionary
Simple explanation of some things
A
Akademy is the yearly conference for KDE Contributors and other interested persons.
B
Baloo is the new file indexer
N
Nepomuk is the old indexing service, now mostly retired.
O
Okular PDF reader released as part of KDE Applications
R
Randa is a remote place in Switzerland where Mario Fux close to every year arranges a large week long hacking sprint.