belonging to or participated in by a community as a whole; public
having no special distinction or quality; widely known or commonly encountered; average or ordinary or usual
being or characteristic of or appropriate to everyday language
a piece of open land for recreational use in an urban area
a period of time containing 365 (or 366) days
a period of time occupying a regular part of a calendar year that is used for some particular activity
the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun
