semimonthly

adj

"semimonthly" is a 11-letter English headword indexed on PlainSpell.

The verdict

“semimonthly” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Occurring twice a month or at half month intervals.

Corpus desk

Index EN-semimonthly · semimonthly · English

semimonthly · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for semimonthly
PropertyValue
Headwordsemimonthly
LanguageEnglish
Part of speechAdjective
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “semimonthly” in English

semimonthlyfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

semimonthly is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Occurring twice a month or at half month intervals.".

No generated misspelling entries exist for semimonthly 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, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From semi- + monthly. The correct English form is semimonthly, spelled S-E-M-I-M-O-N-T-H-L-Y.

Definition

  1. 1
    Occurring twice a month or at half month intervals.

Recorded use

Wiktionary example

These source excerpts show how semimonthly appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. The semimonthly meeting was scheduled for the second and fourth Tuesdays. Compare fortnightly, biweekly, semiweekly; not to be confused with bimonthly

Etymology

From semi- + monthly.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "semimonthly"?
"semimonthly" is spelled S-E-M-I-M-O-N-T-H-L-Y.
What does "semimonthly" mean?
As an adjective, "semimonthly" means: Occurring twice a month or at half month intervals.
What is the origin of the word "semimonthly"?
From semi- + monthly. 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.

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

Source: FrequencyWords open word-frequency list