upbreak

1 of 2

verb

transitive verb

: to break up or open

intransitive verb

: to force a way up (as through the surface)

upbreak

2 of 2

noun

: an act or instance of breaking up

especially : eruption, outburst

Word History

Etymology

Verb

Middle English upbreken, from up + breken to break

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now