set off

verb

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

The verdict

“set off” is uncommon English (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To leave; to set out; to begin a journey or trip.

Corpus desk

Index EN-set-off · set off · English

set off · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-2 2 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 set off
PropertyValue
Headwordset off
LanguageEnglish
Part of speechVerb
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “set off” in English

set offfalls 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

set off is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. 7 senses are on record.

We couldn't generate a plausible misspelling set for set off, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.

No borrowing history is documented for this entry, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct English form is set off, spelled S-E-T- -O-F-F.

Definition

  1. 1
    To leave; to set out; to begin a journey or trip.
  2. 2
    To begin; to cause; to initiate.
  3. 3
    To cause to explode, let off.
  4. 4
    To put into an angry mood; to start (a person) ranting or sulking, etc.
  5. 5
    To enhance by emphasizing differences.
  6. 6
    To offset, to compensate for: to reduce the effect of, by having a contrary effect.
  7. 7
    To deface or soil the next sheet; said of the ink on a freshly printed sheet, when another sheet comes in contact with it before it has had time to dry.

Recorded use

Wiktionary examples

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

  1. He set off in search of better opportunities.
  2. Considerable excitement was caused on the L.M.S.R. Aberdeen line out of Perth recently when a shunting engine in Perth North goods yard, whose driver and fireman were absent, was accidentally set in motion by a shunter and set off unattended on to the main line.

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "set off"?
"set off" is spelled S-E-T- -O-F-F.
What does "set off" mean?
As a verb, "set off" means: To leave; to set out; to begin a journey or trip.
What language does "set off" come from?
"set off" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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