extensively
/ɪkˈstɛn.sɪv.li/adverb
extensively is spelled E-X-T-E-N-S-I-V-E-L-Y: 11 letters and 4 syllables. It appears 7.4 times per million words in written English, the 8,669th most frequent word form (wordfreq, 2021 data). As an adverb, extensively means “In an extensive manner, widely” (English Wiktionary, September 2026).
How many letters and syllables are in extensively?
| Letters | 11: E-X-T-E-N-S-I-V-E-L-Y |
|---|---|
| Syllables | 4 (from its American pronunciation) |
| In writing | 7.4 times per million words; the 8,669th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with |
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 extensively?
Extensively appears 7.4 times per million words in written English, the 8,669th 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 extensively?
- UK /ɪkˈstɛn.sɪv.li/
- US /ɪkˈstɛn.sɪv.li/
- US /ɛkˈstɛn.sɪv.li/
Extensively 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: En-us-extensively.ogg, Wikimedia Commons (author and licence on each file's page).
What rhymes with extensively?
2 words on PlainSpell end in the same sounds as extensively from its last stressed vowel (/ɛnsɪvli/):
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 extensively
- more extensively comparative
- most extensively superlative
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does extensively mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adverb
- 1
In an extensive manner, widely.
He has read and traveled extensively.
- 2
To a great extent.
He became more extensively involved than he intended.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Extensively in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| Portuguese | extensivamente , muito |
| Spanish | extensivamente, largo y tendido , extensamente |
| French | largement |
| German | umfassend |
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 extensively come from?
From extensive + -ly.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).