interplanetary
/ɪntɚˈplænɪˌtɛəri/adjective
interplanetary is spelled I-N-T-E-R-P-L-A-N-E-T-A-R-Y: 14 letters and 6 syllables. It appears about once in every 2 million words in written English, the 36,176th most frequent word form (wordfreq, 2021 data). As an adjective, interplanetary means “Existing or occurring between planets” (English Wiktionary, September 2026).
How many letters and syllables are in interplanetary?
| Letters | 14: I-N-T-E-R-P-L-A-N-E-T-A-R-Y |
|---|---|
| Syllables | 6 (from its American pronunciation) |
| In writing | about once in every 2 million words; the 36,176th 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 interplanetary?
Interplanetary appears about once in every 2 million words in written English, the 36,176th 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 interplanetary?
- UK /ɪntəˈplænɪtəri/
- /ɪntəˈplænɪtri/
- US /ɪntɚˈplænɪˌtɛəri/
Interplanetary has 6 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-interplanetary.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with interplanetary?
One word on PlainSpell end in the same sounds as interplanetary from its last stressed vowel (/ænɪtɛəɹi/):
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).
What does interplanetary mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Existing or occurring between planets.
Humans are just beginning to explore interplanetary travel.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Interplanetary in Spanish, French, German and Portuguese
In the sense existing or occurring between planets:
| Language | Words |
|---|---|
| French | interplanétaire |
| German | interplanetarisch, interplanetar |
| Portuguese | interplanetário |
| Spanish | interplanetario |
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 interplanetary come from?
From inter- + planetary.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).