Ilocos

/ʔɪˈloː.kos/

//ʔɪˈloː.kos// name

"ilocos" is a 6-letter English headword indexed on PlainSpell.

The verdict

“Ilocos” is uncommon English (frequency #84,385 among 2,140 “I” headwords), classed as a proper noun. The kind of spelling people second-guess.

#84,385
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Ilocos Region (a region of Luzon, Philippines).

Corpus desk

Index EN-ilocos · Ilocos · English

Ilocos · rank #84,385 · 0 variants · 0 confusables

  • FREQ-RARE #84,385
  • LEN-LONG 6 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH Ilyich

Nearest frequency peer: Ilyich (+1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “Ilocos”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “Ilocos” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for Ilocos
PropertyValue
HeadwordIlocos
LanguageEnglish
Part of speechProper noun
IPA/ʔɪˈloː.kos/
Letters6
Frequency rank#84,385
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “Ilocos” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).Ilocosfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “Ilyich” (#84,386), “immer” (#84,387), “impost” (#84,388). Among 2,140 “I” headwords, “Ilocos” is #84,385. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Ilocos is uncommon English at frequency #84,385 among 2,140 “I” headwords, classed as aproper noun, transcribed /ʔɪˈloː.kos/. Rarity is why readers land here mid-draft. Gloss: "Ilocos Region (a region of Luzon, Philippines).".

Zero misspellings are on record for Ilocos in our index, a straightforward case of a spelling with little room for common typos. No confusable counterpart is on file for this word, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

Etymologically, the entry records: From Spanish Ilocos, the plural of iloco + -s, where the root is from Ilocano i- (place of origin prefix) + either lukong (“hollow; concave”) or luek/luok (“cove; bay”) + Spanish -o. The correct English form is Ilocos, spelled I-L-O-C-O-S.

Definition

  1. 1
    Ilocos Region (a region of Luzon, Philippines).

Etymology

From Spanish Ilocos, the plural of iloco + -s, where the root is from Ilocano i- (place of origin prefix) + either lukong (“hollow; concave”) or luek/luok (“cove; bay”) + Spanish -o.

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 "Ilocos"?
"Ilocos" is spelled I-L-O-C-O-S. The IPA pronunciation is /ʔɪˈloː.kos/.
What does "Ilocos" mean?
As a proper noun, "Ilocos" means: Ilocos Region (a region of Luzon, Philippines).
How do you pronounce "Ilocos"?
The IPA (International Phonetic Alphabet) transcription for "Ilocos" is /ʔɪˈloː.kos/. 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 "Ilocos"?
From Spanish Ilocos, the plural of iloco + -s, where the root is from Ilocano i- (place of origin prefix) + either lukong (“hollow; concave”) or luek/luok (“cove; bay”) + Spanish -o. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "Ilocos", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 6 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list