Standard Lemma guide

reckoner

noun · 5 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈɹɛkənə(ɹ)/

1

noun

Meaning 1

One who reckons.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

An accountant; one who computes or calculates.

Definition source: English Wiktionary via Wiktextract

Usage: archaic

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An ordinator.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

a handbook of tables used to facilitate computation

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: ready reckoner

Antonyms: none provided

Broader terms: handbook, enchiridion, vade mecum

5

noun

Meaning 5

an expert at calculation (or at operating calculating machines)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: calculator, figurer, estimator, computer

Antonyms: none provided

Broader terms: expert

Narrower terms: adder, number cruncher, statistician, actuary, subtracter

History

Etymology

From Middle English reknere, rekenere. Cognate with Afrikaans rekenaar, Dutch Low Saxon rekener, German Rechner, Danish regner, Swedish räknare. By surface analysis, reckon + -er.