synth

/sɪnθ/

//sɪnθ// noun

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

The verdict

“synth” is a moderately-common English word, ranked #18,442 in English word frequency and used as a noun.

#18,442
frequency rank, English
5
letters
9
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A musical synthesizer.

Visual similarity to commonly confused words

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

synth vs syn
60% similar
synth vs sth
60% similar
synth vs sent
60% similar

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

Key facts for synth
PropertyValue
Headwordsynth
LanguageEnglish
Part of speechNoun
IPA/sɪnθ/
Letters5
Frequency rank#18,442
Misspellings tracked9
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “synth” 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). synth 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 synth is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /sɪnθ/. Corpus data places it at rank #18,442 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "A musical synthesizer.".

Our generated misspelling index lists 9 likely wrong-spelling variants for synth, with forms such as "snyth", "ssynth", and "synht". 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 20 confusable-pair relationships, "syn", "sth", "sent", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Clipping of synthesizer. The correct English form is synth, spelled S-Y-N-T-H.

Definition

  1. 1
    A musical synthesizer.

Etymology

Clipping of synthesizer.

Common misspellings

Also misspelled as: snyth,ssynth,synht,synnth,synthh,syntth,sytnh,syynth,ysnth

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of synth - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

snyth2ssynth1synht2synnth1synthh1syntth1sytnh2syynth1
Edit distance from "synth"

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 "synth"?
"synth" is spelled S-Y-N-T-H. The IPA pronunciation is /sɪnθ/.
What does "synth" mean?
As a noun, "synth" means: A musical synthesizer.
What words are commonly confused with "synth"?
"synth" is commonly confused with "syn", "sth", "sent". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "synth"?
The IPA (International Phonetic Alphabet) transcription for "synth" is /sɪnθ/. 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 "synth"?
Clipping of synthesizer. 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 “synth”

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

  • The one correct English spelling is S-Y-N-T-H - every other letter order is a misspelling in standard orthography.
  • Say it as /sɪnθ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “syn” - see the side-by-side comparison. synth vs syn
  • 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