initial period

noun phrase
UK /ɪˈnɪʃəl ˈpɪəriəd/
US /ɪˈnɪʃəl ˈpɪriəd/

The first part of a time when something happens.

During the initial period of the game, everyone was still learning the rules.


OTHER MEANINGS

2. The first stretch of time in a medical treatment or illness.

The initial period of the illness usually lasts about three days.

3. The early stage of a project or business before it is fully established.

The company lost money during its initial period but grew quickly afterward.

4. The first part of a school term or academic year.

Students are given their timetables during the initial period of the term.