diacritical mark

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a mark added to a letter to indicate a special pronunciation
• Syn:
diacritic
• Derivationally related forms:
diacritic (for: diacritic), diacritical (for: diacritic)
• Hypernyms:
mark
• Hyponyms:
accent, accent mark, breve, cedilla, circumflex,
circumflex, wedge, macron, tilde, umlaut,
dieresis, diaeresis