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momentum

mastery

UK /ˌmə(ʊ)ˈmɛntəm/ US /ˌmoʊˈmɛntəm/noun

card 1 of 10 · context meaning

Which meaning of 'momentum' best matches its use in the sentence?

Though his account of written communication over the past 5,000 years necessarily has a powerful forward momentum, his diversions down the fascinating byways of the subject are irresistible.