testable

/ˈtɛs.tə.bəl/

//ˈtɛs.tə.bəl// adj

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

"testable" is a 8-letter English headword indexed on PlainSpell.

The verdict

“testable” is uncommon English (frequency #54,528 among 27,828 “T” headwords), classed as an adjective. The kind of spelling people second-guess.

#54,528
frequency rank, English
27,828
“T” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Susceptible to being tested.

Key facts for testable
PropertyValue
Headwordtestable
LanguageEnglish
Part of speechAdjective
IPA/ˈtɛs.tə.bəl/
Letters8
Frequency rank#54,528
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “testable” 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). testable lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

testable is uncommon English at frequency #54,528 among 27,828 “T” headwords, classed as anadjective, transcribed /ˈtɛs.tə.bəl/. Rarity is why readers land here mid-draft. 3 senses are on record.

No generated misspelling entries exist for testable in our index, since its letter sequence doesn't invite the usual edit-distance slips. Our dataset records no confusable match here, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From test + -able. The correct English form is testable, spelled T-E-S-T-A-B-L-E.

Definition

  1. 1
    Susceptible to being tested.
  2. 2
    With respect to the scientific method, capable of being proven true or false.
  3. 3
    Capable of being devised, or given by will.

Etymology

From test + -able.

Antonyms

untestableintestable

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 "testable"?
"testable" is spelled T-E-S-T-A-B-L-E. The IPA pronunciation is /ˈtɛs.tə.bəl/.
What does "testable" mean?
As an adjective, "testable" means: Susceptible to being tested.
How do you pronounce "testable"?
The IPA (International Phonetic Alphabet) transcription for "testable" is /ˈtɛs.tə.bəl/. 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 "testable"?
From test + -able. 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.

Using “testable”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is T-E-S-T-A-B-L-E - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈtɛs.tə.bəl/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

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 FrequencyWords open word-frequency list