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sump

/sʌmp/noun, verb

sump is spelled S-U-M-P: 4 letters and one syllable. It appears about once in every 2 million words in written English, the 41,154th most frequent word form (wordfreq, 2021 data). As a noun, sump means “A hollow or pit into which liquid drains, such as a cesspool, cesspit or sink” (English Wiktionary, September 2026). The plural of sump is sumps.

How many letters and syllables are in sump?

Letters4: S-U-M-P
Syllables1 (from its American pronunciation)
In writingabout once in every 2 million words; the 41,154th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is sump?

Sump appears about once in every 2 million words in written English, the 41,154th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce sump?

  • /sʌmp/

Sump has one syllable (counted from its American pronunciation in the CMU Pronouncing Dictionary).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-sump.ogg, Wikimedia Commons (author and licence on each file's page).

Forms of sump

  • sumps plural, present, singular, he/she/it
  • sumping participle, present
  • sumped participle, past

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does sump mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    A hollow or pit into which liquid drains, such as a cesspool, cesspit or sink.

  2. 2

    The lowest part of a mineshaft into which water drains.

  3. 3

    A completely flooded cave passage, sometimes passable by diving.

  4. 4

    The crankcase or oil reservoir of an internal combustion engine.

  5. 5

    The pit at the lowest point in a circulating or drainage system (FM 55-501).

  6. 6

    An intentional depression around a drain or scupper that promotes drainage.

  7. 7

    ScotlandA sudden or heavy fall of rain; a deluge.

verb

  1. 1

    Of a cave passage, to end in a sump, or to fill completely with water on occasion.

    We discovered a new passage, but it sumped after 100 metres.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Sump in Spanish, French, German and Portuguese

LanguageWords
Frenchbassin, fosse d'aisances, puisard (hollow or pit), siphon (completely flooded cave passage), carter d'huile, carter humide (crankcase)
GermanSumpf, Grube (hollow or pit), Ölsumpf (crankcase), Schachtsumpf (lowest part of a mineshaft), sumpfen (to end in a sump)
Portuguesecárter (crankcase)
Spanishcárter (crankcase)

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does sump come from?

From Middle English sompe, either from Middle Dutch somp, sump or Middle Low German sump from Old Saxon *sump, from Proto-West Germanic *sump, ultimately from Proto-Germanic *sumpaz. Doublet of swamp.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What to look up after sump