noun · 6 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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Received-Pronunciation:/sʌˈmeɪʃən/
Southern-England:Recorded audio is listed in the source snapshot.
rhymes with -eɪʃən
CMU ARPABET:S AH0 M EY1 SH AH0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
Summarization; summary; summing up.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
Summing; summing up; adding (adding up) of a series of items.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
the arithmetic operation of summing; calculating the sum of two or more numbers
Definition source: Princeton WordNet 3.0
Examples
the summation of four and three gives seven
four plus three equals seven
Meaning relationships
Synonyms: addition, plus
Antonyms: none provided
Broader terms: arithmetic operation
4
noun
Meaning 4
a concluding summary (as in presenting a case before a law court)
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: summing up, rundown
Antonyms: none provided
Broader terms: summary, sum-up
5
noun
Meaning 5
the final aggregate
Definition source: Princeton WordNet 3.0
Examples
the sum of all our troubles did not equal the misery they suffered
(physiology) the process whereby multiple stimuli can produce a response (in a muscle or nerve or other part) that one stimulus alone does not produce
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: organic process, biological process
History
Etymology
Etymology tree English sum Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English summation From sum + -ation.
Across languages
Translations
21 source translations are retained for this English entry.
Bulgarian:
обобщение
(obobštenie)
— summarization
Polish:
sumowanie
— summarization
Swedish:
summering
— summarization
Basque:
batukari
— mathematics: an adding up of a series of items
Bulgarian:
събиране
(sǎbirane)
— mathematics: an adding up of a series of items
Bulgarian:
сумиране
(sumirane)
— mathematics: an adding up of a series of items
Catalan:
sumatori
— mathematics: an adding up of a series of items
Georgian:
დაჯამება
(daǯameba)
— mathematics: an adding up of a series of items
Georgian:
შეკრება
(šeḳreba)
— mathematics: an adding up of a series of items
Greek:
άθροιση
(áthroisi)
— mathematics: an adding up of a series of items
Icelandic:
summumyndun
— mathematics: an adding up of a series of items
Italian:
sommatoria
— mathematics: an adding up of a series of items
Polish:
sumowanie
— mathematics: an adding up of a series of items
Portuguese:
somatório
— mathematics: an adding up of a series of items
Portuguese:
somatória
— mathematics: an adding up of a series of items
Romanian:
însumare
— mathematics: an adding up of a series of items
Serbo-Croatian:
zbrajanje
— mathematics: an adding up of a series of items
Spanish:
sumatoria
— mathematics: an adding up of a series of items
Spanish:
sumatorio
— mathematics: an adding up of a series of items
Tagalog:
kadagupan
— mathematics: an adding up of a series of items
Turkish:
toplama
— mathematics: an adding up of a series of items