Arithmograph is a term that is seldom used in contemporary language, and therefore, one may not come across many synonyms for the word. However, some possible alternatives for the word include calculating machine, computation device, or numerical instrument. Calculating machine refers to any device that performs mathematical operations, such as adding, subtracting, and multiplying. Computation device encompasses all the electronic or mechanical devices used to carry out mathematical tasks, such as computers, calculators, and abacuses. Numerical instrument connotes any device or tool that evaluates numbers, whether it is an ancient abacus or a modern software program. An individual could use any of these terms interchangeably with arithmograph in specific contexts to communicate the same idea.