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leakproof

leak·proof/ˈliːkpɹuf/adjective, verb

leakproof is spelled L-E-A-K-P-R-O-O-F: 9 letters and 2 syllables (leak·proof). It appears about once in every 32 million words in written English, the 173,967th most frequent word form (wordfreq, 2021 data). As an adjective, leakproof means “Resistant to leaks; hermetic, sound; as of a dry cell battery” (English Wiktionary, September 2026).

How many letters and syllables are in leakproof?

Letters9: L-E-A-K-P-R-O-O-F
Syllables2: leak·proof
In writingabout once in every 32 million words; the 173,967th most frequent word form
Wrong spellings searchednone measured in search

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

How common is leakproof?

Leakproof appears about once in every 32 million words in written English, the 173,967th 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 leakproof?

  • /ˈliːkpɹuf/

Leakproof has 2 syllables, split leak·proof in writing.

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

Forms of leakproof

  • more leakproof comparative
  • most leakproof superlative
  • leak-proof
  • leakproofs present, singular, he/she/it
  • leakproofing participle, present
  • leakproofed participle, past

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

What does leakproof mean?

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

adjective

  1. 1

    Resistant to leaks; hermetic, sound; as of a dry cell battery.

verb

  1. 1

    To make resistant to leakage.

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

Where does leakproof come from?

From leak + -proof.

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

What to look up after leakproof