1. boulder

noun. ['ˈboʊldɝ'] a large smooth mass of rock detached from its place of origin.


  • rock
  • stone
  • river boulder
  • glacial boulder
  • shore boulder


  • bad person
  • achromatic


  • bulder (Middle English (1100-1500))

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Rhymes with Boulder

  • beholder
  • smolder
  • shoulder
  • polder
  • nolder
  • moulder
  • molder
  • holder
  • golder
  • folder
  • dolder
  • colder
  • bolder
  • older

How do you pronounce boulder?

Pronounce boulder as ˈboʊldər.

US - How to pronounce boulder in American English

UK - How to pronounce boulder in British English

Sentences with boulder

1. Noun, singular or mass
The difference between a rock and a boulder can be explained in terms of size and detachment.

Quotes about boulder

1. What to do if you find yourself stuck in a crack in the ground underneath a giant boulder you can't move, with no hope of rescue. Consider how lucky you are that life has been good to you so far. Alternatively, if life hasn't been good to you so far, which given your current circumstances seems more likely, consider how lucky you are that it won't be troubling you much longer.
- Douglas Adams, The Original Hitchhiker Radio Scripts

2. Boulder

noun. a town in north central Colorado; Rocky Mountains resort center and university town.


  • Colorado
  • Centennial State