A person from Guiana or something relating to the people and culture of Guiana.
Formed from Guiana plus the suffix -ese, which is commonly used to denote nationality or origin (like Portuguese, Vietnamese), though this is a less common variant than Guyanese.
The variant 'Guianese' versus the more modern 'Guyanese' shows how standardized spelling changes over time—Guyana updated its name spelling in 1966 after independence, and the nationality term evolved along with it.
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