Princeton's WordNet(0.00 / 0 votes)Rate this definition: principal, school principal, head teacher, head(noun) the educator who has executive authority for a school. she sent unruly pupils to see the principal.
Aruba Population. Factbook > Countries > Aruba > Demographics. Population: 113,648 (July 2016 est.) Definition: This entry gives an estimate from the US Bureau of the Census based on statistics from population censuses, vital statistics registration systems, or sample surveys pertaining to the recent past and on assumptions about future trends.
Population Of Australia 2015. January 1, 2015 - Archieve, Australia. If we talk about the population of Australia then it has the estimated population of more than 23,654,800 living as of January, 2015 in Australia. It comes to 52 nd number sandwiched between Yemen and Madagascar in the world in the terms of population.