¯

Macron

ASCII Code: 175Category: symbols

The macron symbol (¯) indicates long vowel sounds in linguistics and serves as an overline in mathematical notation, while also functioning as a crucial element in Japanese romanization and phonetic transcription systems.

Technical Details

ASCII Code
175
HTML Entity
¯
Hexadecimal
0xAF
Binary
10101111
Octal
257

Usage & Examples

Programming

char symbol = '¯'; // ASCII 175

HTML/Web

¯ or ¯

Common Uses

macronoverlinediacriticvowelpronunciationlinguisticslatinjapanesemathematical

How to Type This Character

Windows

Alt Code:
Hold Alt and type175 on numeric keypad
Character Map:
Search "Character Map" in Start menu

Mac

Character Viewer:
Press Ctrl +Cmd +Space
Copy & Paste:
Easiest method - copy from this page!

💡 Pro tip: The fastest way is to bookmark this page or copy the character from our ASCII library!

About the Macron

Phonetic Precision

Essential for accurate pronunciation guides in dictionaries, language learning materials, and linguistic research. The macron distinguishes long vowels from short vowels in languages like Latin, Japanese (rōmaji), and various other linguistic systems worldwide.

Educational Applications

Critical for language instruction, particularly in classical studies, Japanese language learning, and phonetics courses. Teachers and students rely on macrons to master proper pronunciation and understand vowel length distinctions.

Mathematical Notation

Used as an overline to indicate repeating decimals (0.3̄ = 0.333...), averages (x̄), or negation in logic. The macron provides precise mathematical communication in algebra, statistics, and formal logic systems.

Japanese Romanization

Fundamental to the Hepburn romanization system for Japanese, distinguishing long vowels (ō, ū, ā) that are crucial for proper pronunciation and meaning. Essential for Japanese language learning materials and international communication.

History of the Macron

Ancient Greece

Classical Origins

Ancient Greek grammarians developed diacritical marks including the macron to indicate vowel length and proper pronunciation in poetry and formal speech instruction.

Roman Period

Latin Adoption

Roman scholars adapted the macron for Latin texts to mark long vowels, establishing pronunciation standards that influenced European linguistic traditions for centuries.

1800s

Modern Linguistics

Comparative linguists systematized macron usage for phonetic transcription, making it essential for documenting and comparing languages worldwide in scholarly research.

1954

Hepburn Romanization

The standardized Hepburn system for Japanese romanization officially adopted macrons to indicate long vowels, becoming the international standard for Japanese language instruction.

1980s

Digital Typography

Computer systems integrated macron support for academic publishing, language learning software, and international communication, ensuring global accessibility of linguistic notation.

Cultural Impact

The macron became the bridge between oral and written language precision, enabling accurate preservation and transmission of pronunciation across cultures and centuries, from ancient texts to modern language learning.

Usage Examples

Japanese Romanization

Example
Tōkyō (Tokyo), sūshi (sushi), Ōsaka (Osaka), arigatō gozaimasu

Standard Hepburn romanization showing long vowel pronunciation

Latin Pronunciation

Example
Caesar (Cāesar), Roma (Rōma), natura (nātūra)

Classical Latin with proper vowel length marking for students

Mathematical Notation

Example
x̄ = (x₁ + x₂ + ... + xₙ)/n, 0.1̄ = 0.1111..., ¬A (negation)

Statistical means, repeating decimals, and logical notation

Dictionary Entries

Example
macron /ˈmeɪkrɒn/ n. - a diacritical mark (¯) placed over a vowel

Pronunciation guides in dictionaries and reference materials

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