Meaning and usage of the word stress mark in English

The term "stress mark" refers to a diacritic mark used in certain languages to indicate the pronunciation of certain vowels. In Spanish, for example, stress is often indicated by an acute accent (´) placed over a vowel, such as "á" (ah) or "ó" (oh). This diacritic mark is sometimes referred to as a "stress mark" because it indicates where the stress falls in a word, which can alter the pronunciation of a syllable. In other languages, such as Turkish or Vietnamese, stress marks take the form of dots or other symbols placed over or beneath vowels to indicate pronunciation. The use of stress marks in these languages is important for accurate pronunciation and understanding of the spoken word.