Word Pronunciation & Dictionary

caustic

/ˈkoːstɪk/

Word Rarity Rare

Frequency: 2.97 in modern English

Syllables
caus-tic
IPA
/ˈkoːstɪk/
11
Scrabble Score
7
Letters
2
Syllables
6
Unique Chars

Meaning

noun

Any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic.

Countable; Uncountable

noun

The envelope of reflected or refracted rays of light for a given surface or object.

Countable; Uncountable

noun

The envelope of reflected or refracted rays for a given curve.

Countable; Uncountable

noun

Caustic soda.

Informal; Uncountable

Example Sentences

Etymology

From the Latin causticus (“burning”), from Ancient Greek καυστικός (kaustikós, “burning”), from καυστός (kaustós, “burnt”) + -ικός (-ikós).

Origin

Word Breakdown

  • Root: causticus, καυστικός
  • Suffix: καυστός

Regional Pronunciation

  • American English: /ˈkoːstɪk/
  • British English: /ˈkɔːstɪk/

Usage

Inflected Forms

more caustic (comparative) most caustic (superlative) caustics (plural)

Derived Forms

Phrases

Frequently Paired Words

Synonyms

Rhymes With

Questions

How do you pronounce caustic?
The recorded pronunciation is /ˈkoːstɪk/.
What does caustic mean?
Capable of burning, corroding or destroying organic tissue.
Where does caustic come from?
It is traced to Latin.

How to pronounce caustic

  1. Open the pronunciation page — Open the Speakur entry for “caustic”.
  2. Read the phonetic spelling — Read the IPA spelling (/ˈkoːstɪk/) so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “caustic”.
  4. Repeat and practice — Say “caustic” aloud, matching stress and vowels until it feels natural.