Definition of reinstate for English Language Learners : to put (someone) back in a job or position that had been taken away : to begin using or dealing with (a law, policy, system, etc.) again
Detailed Synonyms for period of time in English. period of time: period of time [the ~] noun. the period of time the term; the period of time; the period; the space of time; the time; the space term [the ~] noun.
noun: An indefinitely long-period of time; an age. An indefinitely long-period of time; an age. The longest unit of geologic time, containing two or more eras. Eternity. Eternity. a time period of 1,000,000,000 many years. The longest time period utilized in geology. A long time period.