Obelus is a symbol that represents division, often used in mathematical equations or in the marking of errors. Some synonyms for the word obelus may include division sign, fraction bar, or even just a square or dot symbol. Other options could include the letter "÷", forward slash "/", or the horizontal line in a fraction. In other contexts, the obelus could be represented by a minus sign, "-" or an asterisk, "*", depending on the type of mathematical equation being used. Regardless of the symbol used to represent division, it is an essential component in many mathematical calculations and is necessary to accurately solve equations and problems.