truantcy
/ˈtruːntsi/ (troun-see)
Definitions
1. noun
The state or condition of being a truant; habitual absence from school or work.
“The school’s truantcy rate has been a persistent concern for the administration.”
2. noun
A period of absence from school or work due to truancy.
“The student’s truantcy was noticed by her teacher, and she was called to the principal’s office.”