underlying
adjective, noun, verb
underlying is spelled U-N-D-E-R-L-Y-I-N-G: 10 letters and 4 syllables. It appears 15 times per million words in written English, the 5,407th most frequent word form (wordfreq, 2021 data). As an adjective, underlying means “Lying underneath” (English Wiktionary, September 2026).
How many letters and syllables are in underlying?
| Letters | 10: U-N-D-E-R-L-Y-I-N-G |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | 15 times per million words; the 5,407th most frequent word form |
| Wrong spellings searched | none measured in search |
| Same letters |
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); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is underlying?
Underlying appears 15 times per million words in written English, the 5,407th 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 underlying?
Underlying has 4 syllables (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: LL-Q1860_(eng)-Vealhurl-underlying.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with underlying?
No other word on PlainSpell ends in the same sounds as underlying.
Spelled with the same letters in another order: enduringly.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of underlying
- underlyings plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does underlying mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Lying underneath.
We dug down to the underlying rock.
- 2
Basic or fundamental.
Points and straight lines are underlying elements of geometry.
- 3
Implicit.
Many nursery rhymes have an underlying meaning.
noun
- 1
The entity from whose performance a derivative derives its value.
verb
- 1
present participle and gerund of underlie
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Underlying in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | sous-jacent |
| German | darunterliegend , implizit |
| Spanish | subyacente , implícito, agazapado |
| Portuguese | implícito, subjacente |
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 underlying come from?
By surface analysis, underlie + -ing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).