A horizontal line above a letter or symbol.

Indicates the mean of a set in statistics.

Represents complex conjugate in mathematics.

Denotes repeating decimal notation, e.g., 0.\overline{3}.

Used for phonetic transcription to indicate stress.

Marks an abbreviation or omitted letters in text context.

Shows lengthening of vowels in some languages' scripts.

To denote a mathematical variable or expression.

To indicate the average of a set in statistics.

To signify negation in logic and Boolean algebra.

To represent complex conjugates in mathematics.

To highlight specific elements for emphasis or clarity.