Definition:Common


 * Analysis:
 * Common Logarithm


 * Arithmetic and algebra:
 * Common Mean: another term for arithmetic mean
 * Common Denominator
 * Lowest Common Denominator
 * Common Divisor, otherwise known as Common Measure
 * Greatest Common Divisor, also known as Highest Common Factor, Greatest Common Factor or Greatest Common Measure
 * Common Multiple
 * Least Common Multiple, also known as Lowest Common Multiple
 * Common Difference
 * Common Ratio
 * Common Fraction, another term for vulgar fraction


 * Geometry:
 * Common Section