tritium

Name: tritium, English Word Data
Creator: Wiktionary
License: https://creativecommons.org/licenses/by-sa/4.0/

/ˈtɹɪt.i.əm/

//ˈtɹɪt.i.əm// noun

By PlainSpell · According to Wiktionary data (CC BY-SA) · analyzed September 3, 2026

The verdict

“tritium” has 10 generated spelling variants in the English index at frequency #43,974. The variants make it a useful spelling check.

#43,974
frequency rank, English: 3,151
“T” headwords: 10
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A radioactive isotope of the element hydrogen (symbol T, ³H or 31H) having one proton and two neutrons.

Corpus desk

Index EN-tritium · tritium · English

tritium · rank #43,974 · 10 variants · 0 confusables

FREQ-MID #43,974
LEN-LONG 7 letters
VOW-3 3 vowels
CONFUS-0 No pairs
VAR-MID 10 variants
BOOK-MID 3,151
PHOTO-FINISH Treadwell

Nearest frequency peer: Treadwell (-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.

torts

56,032
tradeoff

56,031
Treadwell

56,028
tritium

56,027
Tsu

56,025
tubby

56,024

What this shows “tritium” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Key facts for tritium
Property	Value
Headword	tritium
Language	English
Part of speech	Noun
IPA	/ˈtɹɪt.i.əm/
Letters	7
Frequency rank	#43,974
Misspellings tracked	10
Confusable pairs	0
Source	Wiktionary (kaikki.org)

Frequency seat of misspelling magnet “tritium”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).tritiumlands here:

#43,974

#1#100#1K#10K#100K

← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “Treadwell” (#43,973), “Tsu” (#43,976), “tubby” (#43,977). Among 3,151 “T” headwords, “tritium” is #43,974. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 10 spelling variants around tritium (IPA /ˈtɹɪt.i.əm/), anoun. Corpus frequency is #43,974 among 3,151 “T” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 10 likely wrong-spelling variants for tritium, with forms such as "rtitium", "tirtium", and "triitum". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. This headword has no recorded confusable partner, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: Borrowed from New Latin tritium, from Ancient Greek τρίτος (trítos, “third”) + New Latin -ium. The correct English form is tritium, spelled T-R-I-T-I-U-M.

Definition

1
A radioactive isotope of the element hydrogen (symbol T, ³H or 31H) having one proton and two neutrons.
2
An atom of this isotope.

Recorded use

Wiktionary example

These source excerpts show how tritium appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

Electrochemical polymerization of the 1,2-tritiated monomer produced a polymer in which all of the tritiums were eliminated except for those located at the ends of the chains

Etymology

Borrowed from New Latin tritium, from Ancient Greek τρίτος (trítos, “third”) + New Latin -ium.

This word in other languages

Tritium(Deutsch)

Common misspellings

Also misspelled as:

rtitium
tirtium
triitum
tritimu
tritiumm
trittium
trituim
trritium
trtiium
ttritium

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of tritium - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

Edit distance from "tritium"

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 "tritium"?

"tritium" is spelled T-R-I-T-I-U-M. The IPA pronunciation is /ˈtɹɪt.i.əm/.

What does "tritium" mean?

As a noun, "tritium" means: A radioactive isotope of the element hydrogen (symbol T, ³H or 31H) having one proton and two neutrons.

What are common misspellings of "tritium"?

Common misspellings include "rtitium", "tirtium", "triitum", "tritimu", "tritiumm". The correct spelling is "tritium".

How do you pronounce "tritium"?

The IPA (International Phonetic Alphabet) transcription for "tritium" is /ˈtɹɪt.i.əm/. 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 "tritium"?

Borrowed from New Latin tritium, from Ancient Greek τρίτος (trítos, “third”) + New Latin -ium. 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 "tritium", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

tolling#43,967 tilbury#43,962 upswing#43,995 Waddell#44,009

Similar misspelling depth

Headwords with a similar count of attested misspellings (10 here; floor ≥5).

tradeoff10 variants splint10 variants slinky10 variants sardine10 variants