Play truant
Definition 1 of 1
Pro Tip 1/3Informal Usage
Used mainly in conversational and informal contexts, less common in formal writing. 
I heard that Sarah is playing truant again.
Pro Tip 2/3Negative Connotation
Often implies a bad judgment of someone's behavior, especially in educational settings. 
Playing truant can seriously affect your grades.
Pro Tip 3/3Authority Disapproval
Authorities like parents or teachers usually express disapproval when pupils play truant. 
The headmaster will talk to those who have played truant.