- a large floating mass of ice, detached from a glacier and carried out to sea.
- an emotionally cold person.
- a person who swims or surfs regularly in winter.
- the first hint or revelation of something larger or more complex: The new evidence in the case is just the tip of the iceberg.
- a large mass of ice floating in the sea, esp a mass that has broken off a polar glacier
- the small visible part of something, esp a problem or difficulty, that is much larger
- a person considered to have a cold or reserved manner
