initialday
nounUK /ɪˈnɪʃəl deɪ/
US /ɪˈnɪʃəl deɪ/
The first day of something, like the start of school or a new job.
On the initialday of school, the kids met their new teacher.
RELATED WORDS
OTHER MEANINGS
2. The day when a new activity or event begins.
The initialday of the festival was full of music and games.
3. The very first day of a period or season.
We marked the initialday of summer with a picnic.
4. A day set aside to celebrate a new start.
The initialday of the club was celebrated with cake.