Berg
Part of speech: noun
Definition: An iceberg.
Iceberg
Part of speech: noun
Definition: A huge mass of ocean-floating ice which has broken off a glacier or ice shelf
Example sentence: The trick to being a novelist is to act like an iceberg. Make it seem as if you're displaying only one-tenth of what you know, and the other nine-tenths isn't visible and never mind if that part is pure styrofoam!