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calculator

mastery

UK /ˈkæl.kjə.leɪ.tə(ɹ)/ US /kæl.kjə.leɪ.tɚ/noun

card 1 of 10 · context meaning

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

The calculator on a bookkeeper's desk in the 1950s was an adding machine with mechanical guts.