Englishfor English speakers
illustrious
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adjective
having or conferring glory
an illustrious achievement
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adjective
(= celebrated, famed, famous, notable, renowned)
widely known and esteemed
a famous actor
a celebrated musician
a famed scientist
an illustrious judge
a notable historian
a renowned painter
highness
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noun
a high degree (of amount or force etc.)
responsible for the highness of the rates
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noun
the quality of being high or lofty
Highness
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noun
(Your Highness or His Highness or Her Highness) title used to address a royal person