Arithmetic

//əˈɹɪθmətɪk// adj, noun

adj, noun ·Moderate ·High school level

Definitions

Noun
  1. 1
    The mathematics of numbers (integers, rational numbers, real numbers, or complex numbers) under the operations of addition, subtraction, multiplication, and division. uncountable, usually

    "Note that all correctly rounding arithmetics satisfy property A1, as do those with properly truncating addition. All faithful binary arithmetics and all arithmetics with either properly truncating or correctly chopping addition satisfy property A2."

  2. 2
    the branch of pure mathematics dealing with the theory of numerical calculations wordnet
  3. 3
    Number theory dated, uncountable, usually
Adjective
  1. 1
    Increasing or decreasing by an arithmetic progression. not-comparable

    "Near-synonym: linear"

  2. 2
    Of, relating to, or using arithmetic; arithmetical. not-comparable

    "arithmetic geometry"

  3. 3
    Of a progression, mean, etc, computed solely using addition. not-comparable

    "arithmetic progression"

Adjective
  1. 1
    relating to or involving arithmetic wordnet

Example

More examples

"The boy can solve any problem in arithmetic."

Etymology

Etymology 1

From Middle English arsmetike, from Old French arismetique, from Latin arithmētica, from Ancient Greek ἀριθμητική (τέχνη) (arithmētikḗ (tékhnē), “(art of) counting”), feminine of ἀριθμητικός (arithmētikós, “arithmetical”), from ἀριθμός (arithmós, “number, counting”), from Proto-Indo-European *h₂ri-dʰh₁-mó-s, form of *h₂rey- (“to count, reason”). Used in English since 13th century.

Etymology 2

From French arithmétique, from Latin arithmēticus, from Ancient Greek ἀριθμητῐκός (arithmētĭkós).

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.