Word.ws English Dictionary

ppb

ppb is the initialism of parts per billion.

Noun (1) capitalized: PPB

PPB pl (plural only)

  1. (abbreviation, initialism, plural, plural-only) Initialism of parts per billion.

Noun (2) capitalized: PPB

PPB (plural PPBs)

  1. (abbreviation, initialism) Initialism of production-possibility boundary.
    Synonyms:
    PPC, PPF

Synonyms of ppb

Forms of ppb

pluralppb
pluralPPBs

Questions about ppb

What is ppb the initialism of?
Ppb is the initialism of parts per billion.
What part of speech is ppb?
Ppb is a noun.
What is the plural of ppb?
The plural of ppb is ppb.

Words near ppb in the dictionary

  1. pp
  2. PP&H
  3. pp.
  4. PPA
  5. PPAs
  6. ppb
  7. ppbar
  8. PPBM
  9. PPBs
  10. ppbv
  11. PPC

Source and license

Adapted from Wiktionary: ppb (page history and authors); PPB (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “ppb.” Word.ws, https://word.ws/ppb. Based on Wiktionary, CC BY-SA 4.0.