American Heritage® Dictionary of the English Language, Fourth Edition
- n. A small evident part or aspect of something largely hidden: afraid that these few reported cases of the disease might only be the tip of the iceberg.
- tip + iceberg. Floating icebergs have a significant proportion of their mass below the surface of the water. (Wiktionary)
“Fighting and smashing heads through windows is just the tip of the iceberg when it comes to ’roid rage.”
“The ship was maintaining position in Disko Bay about a mile west of the fjord entrance, and Jack could see the tip of the iceberg beyond the starboard railing opposite them.”
“They are just the tip of the iceberg of what is to emerge over the next few years in the growing body of science-validated natural substances.”
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