### In Roman Number system, what is the symbol for zero?

no such symbol

Step by Step Explanation:
1. The basic Roman numerals are:
Roman numeral Number
$I$ $1$
$V$ $5$
$X$ $10$
$L$ $50$
$C$ $100$
$D$ $500$
$M$ $1000$
2. There is no symbol for zero in the Roman numeral system.