(statistics) A measure of how spread out data values are around the mean, defined as the square root of the variance. Represented with the Greek letter σ (sigma).

The situation where two groups or individuals are the same in pertinent ways, but one is condemned for it while the other is excused.

The official language of the People's Republic of China and the Republic of China, based on the Beijing dialect of Mandarin and accepted as a lingua franca for Han communities worldwide.

Alternative spelling of nonstandard

A person who carries a flag or banner (a standard). / (figuratively) A person who visibly leads.

Alternative spelling of substandard

plural of standard-bearer

Time as measured by synchronizing clocks in different geographical locations within a time zone to the same time, rather than using the local meridian, as in local mean time or solar time.

A relative measure of the quality of life a person or group has, often with per capita income (GNI or GDP) serving as a proxy measurement but with some notion of human development as the real (underlying) entity being measured.

plural of standard candle