school day

Definition of School Day in English :

1. school day

any day on which school is in session

Example Sentences:
'go to bed early because tomorrow is a school day'

2. school, school day, schooltime

the period of instruction in a school; the time period when school is in session

Example Sentences:
'stay after school'
'he didn't miss a single day of school'
'when the school day was done we would walk home together'

WordNet Lexical Database for English. Princeton University. 2010.

School Day

1.

any day on which school is in session

2.

the portion of any such day during which school is in session

n.

1. A day on which school is in session.

2. The part of a day during which school is in session.