an expert at calculation (or at operating calculating machines)
<noun.person>
<noun.person>
calculator |
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computer |
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estimator |
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figurer |
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reckoner |
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lexical pointers
derivationally related form
lexical pointers
derivationally related form
lexical pointers
derivationally related form
lexical pointers
derivationally related form
lexical pointers
derivationally related form