a length or portion of time, e.g. hours, days, months and years; a flow of blood from a woman each month; a full stop
extent of time
Cases of word usage
1) the period between childhood and maturity (adolescence)
2) the period or state of being adult (adulthood)
3) the period between morning and evening (afternoon)
4) (used with a noun or adjective) to develop or grow into (a person, thing); to be (the kind mentioned) as a result, after a period of time, after training etc (become)
5) a period of exercise, work or other activity (bout)
6) (of a horse) a pace faster than a trot but slower than a gallop; period of riding at such a pace (canter)
7) a period of 100 years (centenary)
8) a period of 100 years (century)
9) the weather conditions of a place or area over a (long) period (climate)
10) (of events) to happen at the same time; occupy the same period of time (coincide)