erlang

noun

"erlang" is a 6-letter English headword indexed on PlainSpell.

The verdict

“erlang” is uncommon English (frequency #67,415 among 18,836 “E” headwords), classed as a noun. The kind of spelling people second-guess.

#67,415
frequency rank, English
18,836
“E” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A dimensionless statistical measure of the volume of telecommunications traffic relative to the capacity of a single channel.

Key facts for erlang
PropertyValue
Headworderlang
LanguageEnglish
Part of speechNoun
Letters6
Frequency rank#67,415
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “erlang” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). erlang lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

erlang is uncommon English at frequency #67,415 among 18,836 “E” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A dimensionless statistical measure of the volume of telecommunications traffic relative to the capacity of a single channel.".

No generated misspelling entries exist for erlang in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. No confusable counterpart is on file for this word, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: Named after Danish mathematician and engineer Agner Krarup Erlang (1878–1929). The correct English form is erlang, spelled E-R-L-A-N-G.

Definition

  1. 1
    A dimensionless statistical measure of the volume of telecommunications traffic relative to the capacity of a single channel.

Etymology

Named after Danish mathematician and engineer Agner Krarup Erlang (1878–1929).

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 "erlang"?
"erlang" is spelled E-R-L-A-N-G.
What does "erlang" mean?
As a noun, "erlang" means: A dimensionless statistical measure of the volume of telecommunications traffic relative to the capacity of a single channel.
What is the origin of the word "erlang"?
Named after Danish mathematician and engineer Agner Krarup Erlang (1878–1929). See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “erlang”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is E-R-L-A-N-G - 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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list