Thu

name

By · According to Wiktionary data (CC BY-SA) ·

"thu" is a 3-letter English headword indexed on PlainSpell.

The verdict

“Thu” sits in 20 confusable pairs (corpus #24,339) as a proper noun. The look-alike neighbours are the real trap.

#24,339
frequency rank, English
3,151
“T” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A surname.

Corpus desk

Index EN-thu · Thu · English

Thu · rank #24,339 · 0 variants · 20 confusables

  • FREQ-MID #24,339
  • LEN-MID 3 letters
  • VOW-1 1 vowel
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-MID 3,151
  • PHOTO-FINISH thrice

Nearest frequency peer: thrice (-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.

Frequency neighbourhood for “Thu”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “Thu” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

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

Thu vs to
0% similar
Thu vs TV
33% similar
Thu vs TL
33% similar

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

Key facts for Thu
PropertyValue
HeadwordThu
LanguageEnglish
Part of speechProper noun
Letters3
Frequency rank#24,339
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “Thu” 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).Thulands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “thrice” (#24,338), “touchy” (#24,340), “thinning” (#24,337). Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for Thu is neighbouring look-alikes ("to", "TV", …), not just typos; it is aproper noun. Frequency #24,339 among 3,151 “T” headwords. Gloss: "A surname.".

We couldn't generate a plausible misspelling set for Thu, a sign its spelling follows regular English conventions. It also participates in 20 confusable-pair relationships, "to", "TV", "TL", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: Two main origins: * Borrowed from Vietnamese Thư, the local romanization of the Chinese surname 舒 (Shū). * Borrowed from Norwegian Thu, a surname predominantly found in Western Norway. The correct English form is Thu, spelled T-H-U.

Definition

  1. 1
    A surname.

Etymology

Two main origins: * Borrowed from Vietnamese Thư, the local romanization of the Chinese surname 舒 (Shū). * Borrowed from Norwegian Thu, a surname predominantly found in Western Norway.

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 "Thu"?
"Thu" is spelled T-H-U.
What does "Thu" mean?
As a proper noun, "Thu" means: A surname.
What words are commonly confused with "Thu"?
"Thu" is commonly confused with "to", "TV", "TL". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "Thu"?
Two main origins: * Borrowed from Vietnamese Thư, the local romanization of the Chinese surname 舒 (Shū). * Borrowed from Norwegian Thu, a surname predominantly found in Western Norway. 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 "Thu", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 3 letters (nearest by frequency rank).

tay#24,335ACS#24,368bal#24,386bao#24,388

What to do next

You've looked up "Thu". Here's where to go from here.

  • "Thu" maps to 20 confusable pairs in this vintage; the highest-scored is "to". View pair
  • Usage frequency rank #24,339 among English headwords in this corpus. Corpus statistics
  • Browse more English words in the "T" letter cohort. T–Z browse
  • PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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