HilovshypoWhich spelling fits?

Quick tell: Hilo is a name, hypo is a noun, so they fill different roles in a sentence.

Which to use

“Hilo” is a name and “hypo” is a noun - they look or sound alike but fill different roles in a sentence.

#44,257
“Hilo” frequency rank
#42,192
“hypo” frequency rank
86449
confusion score

Side-by-Side Comparison

Feature Hilo hypo
Definition The largest town on the island of Hawaii, in Hawaii County, Hawaii, located at the eastern corner of the island. Melancholy; a fit of hypochondria; a morbid depression.

Letter map: Hilo vs hypo

Shared letters muted; letters that set Hilo and hypo apart highlighted. Shared run: 2. Hilo and hypo follow the identical consonant-vowel pattern (CVCV). Same shape at a glance is often the real trap, independent of shared letters.

4 ch
Hilo
4 ch
hypo

Grammar separator: Hilo vs hypo

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Hilo is aname and hypoanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 86449, derived from the frequency rank of both members and their visual similarity.

Hilo is recorded at frequency rank #44,257, classified as aname. hypo is at rank #42,192, tagged as anoun, pronounced /ˈhaɪ.pəʊ/.

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 86449, this pair ranks #8,928 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Hilo vs hypo

Shared letters: ho. Private to "Hilo": il. Private to "hypo": py.

"Hilo" · 4 letters · shape CVCV  ·  "hypo" · 4 letters · shape CVCV

Known mistypes of this pair

  • Hilo ← hhilo · hillo · hiol · hlio · ihlo
  • hypo ← hhypo · hpyo · hyop · hyppo · hyypo · yhpo

Frequently Asked Questions

Can "Hilo" and "hypo" be used interchangeably?
No - they are not even the same part of speech. "Hilo" is a name and "hypo" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Hilo" or "hypo"?
"hypo" is the more common of the two: it sits at frequency rank #42,192 in our English list, against #44,257 for "Hilo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "Hilo" vs "hypo" is on the table, pick a follow-up below.

  • Full dictionary entry for "Hilo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "hypo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #8,928 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Hilo" and "hypo" also get mixed up with nearby pairs, the highest-scored neighbour is "HIIT vs Hilo". 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 #8,928 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