iceberg vs moderate

iceberg

noun
  • An aloof person. 

  • A huge mass of ocean-floating ice which has broken off a glacier or ice shelf 

  • An impending disastrous event whose adverse effects are only beginning to show, in reference to one-tenth of the volume of an iceberg being visible above water. 

moderate

noun
  • One who holds an intermediate position between extremes, as in politics. 

  • One of a party in Scottish Church history dominant in the 18th century, lax in doctrine and discipline, but intolerant of evangelicalism and popular rights. It caused the secessions of 1733 and 1761, and its final resultant was the Disruption of 1843. 

adj
  • Having an intermediate position between liberal and conservative. 

  • Average priced; standard-deal 

  • more than mild, less than severe 

  • Mediocre 

  • Not violent or rigorous; temperate; mild; gentle. 

  • Not excessive; acting in moderation 

verb
  • To become less excessive 

  • To reduce the excessiveness of (something) 

  • To preside over (something) as a moderator 

  • To act as a moderator; to assist in bringing to compromise 

  • To supply with a moderator (substance that decreases the speed of neutrons in a nuclear reactor and hence increases likelihood of fission). 

How often have the words iceberg and moderate occurred in a corpus of books? (source: Google Ngram Viewer )