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tuff

Syllabification: (tuff)
Pronunciation: /təf/

Definition of tuff

noun

  • a light, porous rock formed by consolidation of volcanic ash.

Derivatives

tuffaceous

Pronunciation: /təˈfāSHəs/

adjective

Origin:

mid 16th century: via French from Italian tufo, from late Latin tofus, Latin tophus (see tophus)

tuff in other Oxford dictionaries

Definition of tuff in the British & World English dictionary