Definition of "principally" []

• In a primary manner; pertaining to the principal of a matter. (adverb)

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• "Southland is a colloquial term principally used to refer to Southern California."
• "With spare language taken principally from the translations by Robert Fitzgerald and Robert Fagles, and with intricate pencil and watercolor illustrations, Mr. Hinds re-creates Odysseus 'turbulent voyage across "the wine-dark sea" from the ruins of Troy to the island of Ithaca and his long-suffering wife, Penelope."
• "This skin is created principally from a glass exterior skin, steel structure, wood decking and grassed, faceted roofscape."