the double dot is an umlaut, and i believe the line is called macron u
A line over the letter o, called a macron, typically indicates a longer pronunciation of the vowel sound in languages such as Latin or Hawaiian. It does not specifically mean "without" in all cases, but rather serves to differentiate between different vowel sounds.
The curved line over a short vowel is called a breve. It is used to indicate a short pronunciation of the vowel.
The line over the top of a vowel is called a macron. It is used in some languages to indicate that the vowel should be pronounced as a long vowel sound.
The bar across the top of a letter indicating the long sound is called a macron.(The curved line for the short sound is called a breve.)
The mark over the letter 'n' in Spanish is called a tilde, and it is used to create the letter "ñ." This letter is pronounced like the "ny" in the English word "canyon."
In linguistics or phonetics, a line over a letter signifies that the sound represented by that letter is pronounced with a higher pitch or tone.
"E with a line over it" typically refers to the letter "E" with a macron, which is a diacritical mark indicating that the vowel is to be pronounced with a long sound. In phonetics, it represents a prolonged vowel sound. This notation is used in various languages and linguistic studies to denote specific pronunciations or phonological features.
The line over a repeating decimal is called the vinculum.
a
periodic line
In some of these letters, you will need a horizontal line over it. It means that for each line, you multiply it by 1,000. Since I can't do that for this, a "*" in front of a letter will represent a line over the letter. 8,657,846= **V**I**I*D*C*L*V*I*IDCCCXLVI.
It is a symbol for the word "with".
10
Over a long vowel it is called a breve, and over a short vowel, I believe it is called a circumflex.
An accent.
A bar.
Technically it's over the line but it's rarely called.