toughen

/ˈtʌfən/

//ˈtʌfən// verb

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

"toughen" is a 7-letter English headword indexed on PlainSpell.

The verdict

“toughen” has 10 generated spelling variants in the English index at frequency #44,534. The variants make it a useful spelling check.

#44,534
frequency rank, English
3,151
“T” headwords
10
tracked misspellings
4
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To make tough.

Corpus desk

Index EN-toughen · toughen · English

toughen · rank #44,534 · 10 variants · 4 confusables

  • FREQ-MID #44,534
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-MID 4 pairs
  • VAR-MID 10 variants
  • BOOK-MID 3,151
  • PHOTO-FINISH tortuous

Nearest frequency peer: tortuous (-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.

Rank peers near misspelling magnet “toughen”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

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

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).

toughen vs tougher
86% similar
toughen vs tough
71% similar
toughen vs touched
71% similar

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

Key facts for toughen
PropertyValue
Headwordtoughen
LanguageEnglish
Part of speechVerb
IPA/ˈtʌfən/
Letters7
Frequency rank#44,534
Misspellings tracked10
Confusable pairs4
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “toughen”

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).toughenlands here:

#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 “tortuous” (#44,533), “trawl” (#44,535), “toppling” (#44,532). Among 3,151 “T” headwords, “toughen” is #44,534. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 10 spelling variants around toughen (IPA /ˈtʌfən/), averb. Corpus frequency is #44,534 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 toughen, with forms such as "otughen", "toguhen", and "tougehn". 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. It also participates in 4 confusable-pair relationships, "tougher", "tough", "touched", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From tough + -en. The correct English form is toughen, spelled T-O-U-G-H-E-N.

Definition

  1. 1
    To make tough.
  2. 2
    To become tough.

Recorded use

Wiktionary examples

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

  1. The new training program is designed to toughen the athletes.
  2. A cold shower every morning will toughen your skin.

Etymology

From tough + -en.

This word in other languages

versteifen(Deutsch)

Common misspellings

Also misspelled as:

  • otughen
  • toguhen
  • tougehn
  • tougghen
  • toughenn
  • toughhen
  • toughne
  • touhgen
  • ttoughen
  • tuoghen

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of toughen - 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.

otughen2toguhen2tougehn2tougghen1toughenn1toughhen1toughne2touhgen2
Edit distance from "toughen"

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 "toughen"?
"toughen" is spelled T-O-U-G-H-E-N. The IPA pronunciation is /ˈtʌfən/.
What does "toughen" mean?
As a verb, "toughen" means: To make tough.
What words are commonly confused with "toughen"?
"toughen" is commonly confused with "tougher", "tough", "touched". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "toughen"?
The IPA (International Phonetic Alphabet) transcription for "toughen" is /ˈtʌfən/. 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 "toughen"?
From tough + -en. 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 "toughen", not the corpus desk frequency band.

Same letter count

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

thermos#44,527sunbeam#44,517Wakanda#44,563wattage#44,567

Similar misspelling depth

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

swanky10 variantsvignette10 variantsshucks10 variantsaccursed10 variants

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

Source: FrequencyWords open word-frequency list