PBB
"pbb" is a 3-letter English headword indexed on PlainSpell.
The verdict
“PBB” is uncommon English (frequency #95,250 among 46,516 “P” headwords), classed as a noun. The kind of spelling people second-guess.
- #95,250
- frequency rank, English
- 46,516
- “P” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Initialism of polybrominated biphenyl.
| Property | Value |
|---|---|
| Headword | PBB |
| Language | English |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #95,250 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “PBB” sits in English frequency
Rare enough to double-check
PBB is uncommon English at frequency #95,250 among 46,516 “P” headwords, classed as anoun. Rarity is why readers land here mid-draft. 4 senses are on record.
Zero misspellings are on record for PBB in our index, since its letter sequence doesn't invite the usual edit-distance slips. Our dataset records no confusable match here, since nothing in our dataset looks or sounds close enough to cause mix-ups.
Our source data has no etymology on file for this entry, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is PBB, spelled P-B-B.
Definition
- 1Initialism of polybrominated biphenyl.
- 2Initialism of passenger boarding bridge; Synonym of jet bridge.
- 3Initialism of performance-based bonus.
- 4Initialism of Provider Backbone Bridges or provider backbone bridging.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "PBB"?
What does "PBB" mean?
What language does "PBB" come from?
Is PlainSpell free to use?
Using “PBB”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is P-B-B - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.