eyepiece

noun

"eyepiece" is a 8-letter English headword indexed on PlainSpell.

The verdict

“eyepiece” is an uncommon English word, ranked #56,739 in English word frequency and used as a noun.

#56,739
frequency rank, English
8
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The lens (or the component containing a combination of lenses) at the eye end of a microscope or telescope by which the image is viewed.

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Key facts for eyepiece
PropertyValue
Headwordeyepiece
LanguageEnglish
Part of speechNoun
Letters8
Frequency rank#56,739
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “eyepiece” 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). eyepiece lands here:

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

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

Spelling & Dictionary Insight

The English entry for eyepiece is 8 letters long, classified as a noun. Corpus data places it at rank #56,739 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "The lens (or the component containing a combination of lenses) at the eye end of a microscope or telescope by which the image is viewed.".

No misspelling variants are generated for eyepiece in our index, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From eye + piece. The correct English form is eyepiece, spelled E-Y-E-P-I-E-C-E.

Definition

  1. 1
    The lens (or the component containing a combination of lenses) at the eye end of a microscope or telescope by which the image is viewed.

Etymology

From eye + piece.

This word in other languages

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.

Cite this page

Free to reuse with attribution (CC BY-SA). Copy the citation:

PlainSpell, “eyepiece, English word data” (May 6, 2026). Derived from Wiktionary (kaikki.org, CC BY-SA) and an open word-frequency list. https://plainspell.com/en/word/eyepiece

Frequently Asked Questions

How do you spell "eyepiece"?
"eyepiece" is spelled E-Y-E-P-I-E-C-E.
What does "eyepiece" mean?
As a noun, "eyepiece" means: The lens (or the component containing a combination of lenses) at the eye end of a microscope or telescope by which the image is viewed.
What is the origin of the word "eyepiece"?
From eye + piece. 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 “eyepiece”

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

  • The one correct English spelling is E-Y-E-P-I-E-C-E - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Nearby English words

Other entries that begin with the letter E in our English index:

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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