octillion
French, number/ɔk.ti.ljɔ̃/
octillion is spelled O-C-T-I-L-L-I-O-N (9 letters). Octillion is a French masculine number meaning “quindecillion (10⁴⁸)” (English Wiktionary, September 2026).
What does octillion mean in English?
number
- 1
masculinequindecillion (10⁴⁸)
- 2
datedmasculineoctillion (10²⁷)
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
noun: 1. Un million de septillions, soit 10⁴⁸.
The definition in the French Wiktionary (Wiktionnaire), in French.
Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of octillion
- octillions plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce octillion?
- /ɔk.ti.ljɔ̃/
- \ɔk.ti.ljɔ̃\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.