With more people, or a longer period, she might have been lost forever.

I am 88 years old and very familiar with the period.

Our sleeping times being with a period of 50 years.

"Unless the word was associated with a specific period of their lives, such as military service."

His life was difficult, with long periods of hard living.

No one familiar with the period would find that fact significant.

Each class is 50 minutes long, with a 4 minute passing period.

I was the one at school with the four-year period.

Humans go even further still, with the long period of learning before their young are independent.

The two stars are now known to orbit each other with a period of 96.7 days.