Which to use
“father” and “fathom” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #549
- “father” frequency rank
- #20,922
- “fathom” frequency rank
- 21471
- confusion score
Side-by-Side Comparison
| Feature | father | fathom |
|---|---|---|
| Definition | A male parent, especially of a human; a male who parents a child (which he has sired, adopted, fostered, taken as his own, etc.). | A man's armspan, generally reckoned to be six feet (about 1.8 metres). Later used to measure the depth of water, but now generally replaced by the metre outside American usage. |
Where the eye mixes father and fathom
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Visual trap between father and fathom
A purely visual mix-up. father (/ˈfɑː.ðə(ɹ)/) and fathom (/ˈfað(ə)m/) 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 21471, derived from the frequency rank of both members and their visual similarity.
father is recorded at frequency rank #549, classified as anoun, pronounced /ˈfɑː.ðə(ɹ)/. fathom is at rank #20,922, tagged as anoun, pronounced /ˈfað(ə)m/.
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 21471, this pair ranks #423,660 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of father vs fathom
Shared letters: afht. Private to "father": er. Private to "fathom": mo.
"father" · 6 letters · shape CVCCVC · "fathom" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "father" and "fathom" mean the same thing in a sentence?
In ordinary English text, does "father" or "fathom" show up more?
What to do next
Eye-level mix-up between "father" and "fathom" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "father" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fathom" - compare definitions side by side with the headword page. Word entry
- This pair ranks #423,660 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "father" and "fathom" also get mixed up with nearby pairs, the highest-scored neighbour is "fader vs father". 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 #423,660 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.