Definition of hardstone in English:

hardstone

Line breaks: hard|stone

Entry from British & World English dictionary

noun

[mass noun]
Precious or semi-precious stone used for intaglio, mosaic work, etc.

Definition of hardstone in:

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Word of the day flagitious
Pronunciation: fləˈdʒɪʃəs
adjective
(of a person or their actions) criminal; villainous