OTP
noun, adjective, phrase, prepositional phrase
OTP is spelled O-T-P: 3 letters. It appears about once in every 2 million words in written English, the 45,363rd most frequent word form (wordfreq, 2021 data). As a noun, OTP means “Initialism of one-time pad” (English Wiktionary, September 2026). The plural of OTP is OTPs.
How many letters and syllables are in OTP?
| Letters | 3: O-T-P |
|---|---|
| In writing | about once in every 2 million words; the 45,363rd most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is OTP?
OTP appears about once in every 2 million words in written English, the 45,363rd 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).
Forms of OTP
- OTPs plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does OTP mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
Initialism of one-time pad.
He received a login OTP after typing his phone number for premium subscription to a streaming service.
- 2
Initialism of one-time password: a password that is valid for only one login session or transaction.
- 3
slangInitialism of one true pair (or pairing): the romantic pairing preferred by an author or reader of fan fiction.
- 4
Initialism of one-trick pony.
- 5
Initialism of offer to purchase.
adjective
- 1
Initialism of one-time programmable.
phrase
- 1
Initialism of on the phone.
prepositional phrase
- 1
Initialism of outside the perimeter.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
OTP in Spanish, French, German and Portuguese
In the sense one-time password:
| Language | Words |
|---|---|
| Spanish | contraseña de un solo uso, clave de solamente un uso |
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.