sequencer

noun

"sequencer" is a 9-letter English headword indexed on PlainSpell.

The verdict

“sequencer” is a moderately-common English word, ranked #48,476 in English word frequency and used as a noun.

#48,476
frequency rank, English
9
letters
13
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Any device that activates or deactivates the components of a machine or system according to a preplanned sequence (as in a washing machine, or central heating system).

Visual similarity to commonly confused words

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

sequencer vs sequence
89% similar

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

Key facts for sequencer
PropertyValue
Headwordsequencer
LanguageEnglish
Part of speechNoun
Letters9
Frequency rank#48,476
Misspellings tracked13
Confusable pairs1
SourceWiktionary (kaikki.org)

Where “sequencer” 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). sequencer 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 sequencer is 9 letters long, classified as a noun. Corpus data places it at rank #48,476 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 13 likely wrong-spelling variants for sequencer, with forms such as "esquencer", "seqeuncer", and "seqquencer". 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, "sequence", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From sequence + -er. The correct English form is sequencer, spelled S-E-Q-U-E-N-C-E-R.

Definition

  1. 1
    Any device that activates or deactivates the components of a machine or system according to a preplanned sequence (as in a washing machine, or central heating system).
  2. 2
    A device or system that orders and/or modifies digitally stored music and sound for playback.
  3. 3
    A device for determining the sequence of monomers in a polymer, especially amino acids in protein, or bases in DNA; A sequenator.
  4. 4
    A control device to increase/decrease the capacity of plant that is enabled to act in a specific order or sequence.

Etymology

From sequence + -er.

This word in other languages

Common misspellings

Also misspelled as: esquencer,seqeuncer,seqquencer,sequecner,sequenccer,sequencerr,sequencre,sequenecr,sequenncer,sequnecer,seuqencer,sqeuencer,ssequencer

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of sequencer - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

esquencer2seqeuncer2seqquencer1sequecner2sequenccer1sequencerr1sequencre2sequenecr2
Edit distance from "sequencer"

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 "sequencer"?
"sequencer" is spelled S-E-Q-U-E-N-C-E-R.
What does "sequencer" mean?
As a noun, "sequencer" means: Any device that activates or deactivates the components of a machine or system according to a preplanned sequence (as in a washing machine, or central heating system).
What words are commonly confused with "sequencer"?
"sequencer" is commonly confused with "sequence". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "sequencer"?
From sequence + -er. 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 “sequencer”

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

  • The one correct English spelling is S-E-Q-U-E-N-C-E-R - every other letter order is a misspelling in standard orthography.
  • Don't mix it up with “sequence” - see the side-by-side comparison. sequencer vs sequence
  • 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