Word Type

Proper Noun

Noun

Verb

The word "boulder" can be used as proper noun, noun and verb.

Word Relationships

Capable Of

roll down from mountain

Derived Terms

boulderer bouldering boulderless boulderlike bouldery

Context

geology

Broader Terms (Hypernyms)

rock stone

Narrower Terms (Hyponyms)

boulderstone river boulder

Type Of (IsA)

rock stone

Part Of

colorado

Related Terms

boulder clay boulder holder boulder opal over-the-shoulder boulder holder

Related Terms

barbour county big big rock big stone bold boulder county bouldering cdp clinton county colorado county seat diameter garfield county illinois jefferson county kalgoorlie large large rock large stone like like bold marble mm montana mountains particle rock smashing stone sublette county usa utah wentworth scale west virginia western australia wyoming

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.