actus

noun

"actus" is a 5-letter English headword indexed on PlainSpell.

The verdict

“actus” is uncommon English (frequency #97,759 among 3,931 “A” headwords), classed as a noun. The kind of spelling people second-guess.

#97,759
frequency rank, English
3,931
“A” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A former Roman unit of length, equal to 120 Roman feet (about 35.5 m)

Corpus desk

Index EN-actus · actus · English

actus · rank #97,759 · 0 variants · 0 confusables

  • FREQ-RARE #97,759
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH ActionScript

Nearest frequency peer: ActionScript (-1 rank slots)

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.

Long-tail ranks near “actus”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “actus” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for actus
PropertyValue
Headwordactus
LanguageEnglish
Part of speechNoun
Letters5
Frequency rank#97,759
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “actus” in English

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).actusfalls in this rarity band:

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “ActionScript” (#97,758), “Adah” (#97,760), “acquits” (#97,757). Among 3,931 “A” headwords, “actus” is #97,759. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

actus is uncommon English at frequency #97,759 among 3,931 “A” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

actus doesn't appear in our generated misspelling index, since its letter sequence doesn't invite the usual edit-distance slips. We don't track a confusable pairing for this entry, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From Latin āctus (“a cattle drive; a cattle path; units of length and area”). Doublet of act. The correct English form is actus, spelled A-C-T-U-S.

Definition

  1. 1
    A former Roman unit of length, equal to 120 Roman feet (about 35.5 m)
  2. 2
    A former Roman unit of area, equivalent to a square with sides of 1 actus (about 0.125 ha)

Etymology

From Latin āctus (“a cattle drive; a cattle path; units of length and area”). Doublet of act.

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 "actus"?
"actus" is spelled A-C-T-U-S.
What does "actus" mean?
As a noun, "actus" means: A former Roman unit of length, equal to 120 Roman feet (about 35.5 m)
What is the origin of the word "actus"?
From Latin āctus (“a cattle drive; a cattle path; units of length and area”). Doublet of act. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "actus", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list