meridian

/məˈɹɪ.dɪ.ən/

//məˈɹɪ.dɪ.ən// noun

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

The verdict

“meridian” is a moderately-common English word, ranked #17,673 in English word frequency and used as a noun.

#17,673
frequency rank, English
8
letters
11
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - In full celestial meridian: a great circle passing through the poles of the celestial sphere and the zenith for a particular point on the Earth's surface.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

meridian vs median
75% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for meridian
PropertyValue
Headwordmeridian
LanguageEnglish
Part of speechNoun
IPA/məˈɹɪ.dɪ.ən/
Letters8
Frequency rank#17,673
Misspellings tracked11
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “meridian” 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). meridian 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 meridian is 8 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /məˈɹɪ.dɪ.ən/. Corpus data places it at rank #17,673 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 13 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 11 likely wrong-spelling variants for meridian, with forms such as "emridian", "meirdian", and "merdiian". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 1 confusable-pair relationship, "median", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: The noun is derived from Late Middle English meridian, meridien (“midday, noon; position of the sun at noon; the south; longitude of a place; (astronomy) celestial meridian”) [and other forms], from Anglo-Norman meridien (“midday”), Middle French meridien (… The correct English form is meridian, spelled M-E-R-I-D-I-A-N.

Definition

  1. 1
    In full celestial meridian: a great circle passing through the poles of the celestial sphere and the zenith for a particular point on the Earth's surface.
  2. 2
    In full terrestrial meridian: a great circle on the Earth's surface, passing through the geographic poles (the terrestrial North Pole and South Pole); also, half of such a circle extending from pole to pole, all points of which have the same longitude.
  3. 3
    The place on the celestial meridian where it is crossed by the sun or a star at its highest point.
  4. 4
    The place on the celestial meridian where it is crossed by the sun or a star at its highest point.
  5. 5
    The place on the celestial meridian where it is crossed by the sun or a star at its highest point.
  6. 6
    A ring or half-ring with markings in which an artificial globe is installed and may spin.
  7. 7
    A line passing through the poles of any sphere; a notional line on the surface of a curved or round body (in particular, an eyeball).
  8. 8
    The size of type between double great primer and canon, standardized as 44-point.
  9. 9
    The south.
  10. 10
    Midday, noon.
  11. 11
    A midday rest; a siesta.
  12. 12
    A particular area or situation considered as having a specific characteristic or identity; also, the characteristics, habits, or tastes of a specific group, locale, etc.
  13. 13
    An alcoholic drink taken at midday.

Etymology

The noun is derived from Late Middle English meridian, meridien (“midday, noon; position of the sun at noon; the south; longitude of a place; (astronomy) celestial meridian”) [and other forms], from Anglo-Norman meridien (“midday”), Middle French meridien (“midday; the south; terrestrial meridian; (astronomy) celestial meridian”) (modern French méridien), and Old French meridiane, meridiiene, and from their etymon Latin merīdiānum (“midday; position of the sun at noon; the south”), a noun use of the neuter form of merīdiānus (“relating to midday; southern”); see further at etymology 1. Sense 1.1 (“celestial meridian”) is ultimately modelled after Latin merīdiāna līnea (“meridian line”). Sense 5.2 (“midday rest; siesta”) is modelled after Late Latin meridiana (“midday; midday rest”), probably short for Latin merīdiāna hōra (“midday time”). The verb is derived from the noun.

This word in other languages

Common misspellings

Also misspelled as: emridian,meirdian,merdiian,meridain,meriddian,meridiann,meridina,meriidan,merridian,mmeridian,mreidian

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of meridian - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

emridian2meirdian2merdiian2meridain2meriddian1meridiann1meridina2meriidan2
Edit distance from "meridian"

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 "meridian"?
"meridian" is spelled M-E-R-I-D-I-A-N. The IPA pronunciation is /məˈɹɪ.dɪ.ən/.
What does "meridian" mean?
As a noun, "meridian" means: In full celestial meridian: a great circle passing through the poles of the celestial sphere and the zenith for a particular point on the Earth's surface.
What words are commonly confused with "meridian"?
"meridian" is commonly confused with "median". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "meridian"?
The IPA (International Phonetic Alphabet) transcription for "meridian" is /məˈɹɪ.dɪ.ən/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "meridian"?
The noun is derived from Late Middle English meridian, meridien (“midday, noon; position of the sun at noon; the south; longitude of a place; (astronomy) celestial meridian”) [and other forms], from Anglo-Norman meridien (“midday”), Middle French ... 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 “meridian”

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

  • The one correct English spelling is M-E-R-I-D-I-A-N - every other letter order is a misspelling in standard orthography.
  • Say it as /məˈɹɪ.dɪ.ən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “median” - see the side-by-side comparison. meridian vs median
  • Browse more English words and confusable pairs in the same reference. English words
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