Standard Lemma guide

cumulus

noun · 4 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈkjuːmjʊləs/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ˈkjumjələs/
  • rhymes with -uːmjʊləs

1

noun

Meaning 1

A heap or mound.

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

A large white, puffy cloud that develops through convection.

Definition source: English Wiktionary via Wiktextract

Topics: climatology, meteorology, natural-sciences

Examples

  • 2007 September 1, "Who’s afraid of Google?: The world’s internet superpower faces testing times", in The Economist, The Economist Newspaper Ltd, ISSN 0013-0613, volume 384, number 8544, page 9, Ironically, there is something rather cloudlike about the multiple complaints surrounding Google. The issues are best parted into two cumuli: a set of “public” arguments about how to regulate Google; and a set of “private” ones for Google’s managers, to do with the strategy the firm needs to get through the coming storm.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

a collection of objects laid on top of each other

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: pile, heap, mound, agglomerate, cumulation

Antonyms: none provided

Broader terms: collection, aggregation, accumulation, assemblage

Narrower terms: compost heap, compost pile, dunghill, midden, muckheap, muckhill, scrapheap, shock, slagheap, stack, pyre, funeral pyre, woodpile, stockpile

4

noun

Meaning 4

a globular cloud

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: cumulus cloud

Antonyms: none provided

Broader terms: cloud

Narrower terms: altocumulus, altocumulus cloud, thunderhead

History

Etymology

Etymology tree Proto-Indo-European *ḱewh1- Proto-Indo-European *ḱuh1mósder.? Latin cumulusbor. English cumulus Learned borrowing from Latin cumulus. Doublet of comble. Sense 2 (“type of cloud”) was coined by the British chemist and amateur meteorologist Luke Howard (1772–1864): see the 1803 quotation.

Across languages

Translations

40 source translations are retained for this English entry.

  • Bulgarian: кълбест облак (kǎlbest oblak) — white, puffy cloud
  • Catalan: cúmul — white, puffy cloud
  • Chinese Cantonese: 積雲 /积云 (zik1 wan4) — white, puffy cloud
  • Chinese Mandarin: 積雲 /积云 (jīyún) — white, puffy cloud
  • Dutch: stapelwolk — white, puffy cloud
  • Finnish: kumpupilvi — white, puffy cloud
  • German: Quellwolke — white, puffy cloud
  • German: Haufenwolke — white, puffy cloud
  • German: Kumuluswolke — white, puffy cloud
  • German: Kumulus — white, puffy cloud
  • German: Cumulus — white, puffy cloud
  • Hungarian: gomolyfelhő — white, puffy cloud
  • Hungarian: kumulusz — white, puffy cloud
  • Interlingua: cumulo — white, puffy cloud
  • Italian: cumulo — white, puffy cloud
  • Japanese: 積雲 (sekiun) — white, puffy cloud
  • Korean: 적운 (jeogun) — white, puffy cloud
  • Latin: cumulus — white, puffy cloud
  • Latin: nubes cumula — white, puffy cloud
  • Latvian: gubu mākonis — white, puffy cloud
  • Macedonian: кумулус (kumulus) — white, puffy cloud
  • Māori: kapua whakapipi — white, puffy cloud
  • Māori: kapua taipua — white, puffy cloud
  • Māori: taipua — white, puffy cloud
  • Polish: obłok — white, puffy cloud
  • Portuguese: cúmulo — white, puffy cloud
  • Romanian: cumulus — white, puffy cloud
  • Russian: кучевое облако (kučevoje) — white, puffy cloud
  • Spanish: cúmulo — white, puffy cloud
  • Swedish: cumulusmoln — white, puffy cloud
  • Tagalog: buntuning alapaap — white, puffy cloud
  • Turkish: kümülüs — white, puffy cloud
  • Bulgarian: куп (kup) — mound or heap
  • Bulgarian: купчина (kupčina) — mound or heap
  • Finnish: kasa — mound or heap
  • Japanese: 堆積 (taiseki) — mound or heap
  • Portuguese: cúmulo — mound or heap
  • Portuguese: acúmulo — mound or heap
  • Portuguese: monte — mound or heap
  • Portuguese: pilha — mound or heap
Real reading context

cumulus in complete knowledge articles