period

1 period /ˈpirijəd/ noun
plural periods
1 period
/ˈpirijəd/
noun
plural periods
Britannica Dictionary definition of PERIOD
[count]
1 
: a length of time during which a series of events or an action takes place or is completed
— often + of
— see also cooling-off period
2 
: a length of time that is very important in the history of the world, a nation, etc.
3 
: a time that is very important in the life of a person
4 
a  : one of the parts that a school day is divided into
b  : one of the parts that the playing time of a game (such as hockey) is divided into
5 
US
a  : a point . used to show the end of a sentence or an abbreviation
— called also (British) full stop
b  — used in speech to emphasize that a decision, command, or opinion has been made and will not be changed
2 period /ˈpirijəd/ adjective
2 period
/ˈpirijəd/
adjective
Britannica Dictionary definition of PERIOD
always used before a noun
: of, relating to, or typical of a particular time in history