slothvssynthTell them apart

Which to use

“sloth” and “synth” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#25,579
“sloth” frequency rank
#18,442
“synth” frequency rank
44021
confusion score

Side-by-Side Comparison

Feature sloth synth
Definition Laziness; slowness in the mindset; disinclination to action or labour. A musical synthesizer.

Where the eye mixes sloth and synth

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
sloth
5 ch
synth

Look-alike desk: sloth vs synth

A purely visual mix-up. sloth (/sləʊθ/) and synth (/sɪnθ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 44021, derived from the frequency rank of both members and their visual similarity.

sloth is recorded at frequency rank #25,579, classified as anoun, pronounced /sləʊθ/. synth is at rank #18,442, tagged as anoun, pronounced /sɪnθ/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 44021, this pair ranks #234,439 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sloth vs synth

Shared letters: hst. Private to "sloth": lo. Private to "synth": ny.

"sloth" · 5 letters · shape CCVCC  ·  "synth" · 5 letters · shape CVCCC

Known mistypes of this pair

  • slothlsoth · slloth · sloht · slothh · slotth · sltoh · solth · ssloth
  • synthsnyth · ssynth · synht · synnth · synthh · syntth · sytnh · syynth

Frequently Asked Questions

Do "sloth" and "synth" mean the same thing in a sentence?
No. They are said differently (/sləʊθ/ versus /sɪnθ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "sloth" vs "synth" - which ranks higher?
"synth" is the more common of the two: it sits at frequency rank #18,442 in our English list, against #25,579 for "sloth". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "sloth" and "synth" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "sloth" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "synth" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #234,439 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "sloth" and "synth" also get mixed up with nearby pairs, the highest-scored neighbour is "sleuth vs sloth". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #234,439 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list