Circumflex accent marks, also called carets, look like little hats over a letter and are used in foreign words that have been incorporated into English, such as the word château, which means castle.
How do you type characters with circumflex accents in Word? Type accent circumflexe in Word
Circumflex accent diacritics are used in Latin, Cyrillic, and Greek. Since computer users in the U.S. are likely to use a Latin-based keyboard, the languages and words that have been borrowed into English with circumflex accents are primarily from the French language.
In English, a circumflex accent mark is sometimes retained when the spelling in English is the same as in the original language, such as the word for the French delicacy crème brûlée.
Circumflex accent marks are found on the following major and minor vowels: Â, â, Ê, ê, Î, î, Ô, ô, Û and û.