sei
Portuguese, interjection/ˈsej/
sei is spelled S-E-I (3 letters) and appears 759 times per million words in written Portuguese, the 120th most frequent Portuguese word form (wordfreq, 2021 data). Sei is a Portuguese interjection meaning “yeah, right (sarcastic expression of disbelief)” (English Wiktionary, September 2026). It is also a first-person singular present indicative of saber. The Portuguese Wiktionary (Wikcionário) defines it as “expressa que aquilo ouvido que foi dito ou afirmado por alguém não é tomado como sendo a verdade”.
What does sei mean in English?
interjection
- 1
Brazilyeah, right (sarcastic expression of disbelief)
verb
- 1
first-person singular present indicative of saber
Source: English Wiktionary, Portuguese section, dump of September 2, 2026 (CC BY-SA 4.0).
How Portuguese dictionaries define it
interjection: 1. expressa que aquilo ouvido que foi dito ou afirmado por alguém não é tomado como sendo a verdade
The definition in the Portuguese Wiktionary (Wikcionário), in Portuguese.
Source: Portuguese Wiktionary (Wikcionário), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of sei
- sey alternative obsolete
Source: English Wiktionary and Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce sei?
- Brazil /ˈsej/
- Brazil [ˈseɪ̯]
- Portugal /ˈsɐj/
Sources: English Wiktionary, Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
How common is sei in Portuguese?
sei appears 759 times per million words in written Portuguese.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).