Wiktionary
n. A Bible program for children hosted by many Christian churches in the summer.
Wikipedia
Vacation Bible School (VBS) is a specialized form of religious education which focuses on children. Churches usually hold the week-long events during the summer, though the lengths of such programs may vary, and they are sometimes held during other times of the year.
Usage examples of "vacation bible school".
At vacation Bible school, his friends had prayed and received Christ.
Ryan had been to Vacation Bible School a couple of times, but it was at Uncle Walter's funeral, when Ryan had worked up the courage to ask Aunt Evelyn why she wasn't more sad, that she had said that confusing thing to him.
We heard it at Sunday school, at Wednesday night prayer service, and at Vacation Bible School.
He listened to a recital of the entire attendance sheet of a vacation Bible school that had opened, and closed forever, in the summer of 1893.
Arnie and I had gone to Vacation Bible School together for two weeks each summer, and every day the teacher would tell a Bible story and leave it unfinished.
Two of Charlie's drawings, made at the Vacation Bible School she had attended in July, held on the refrigerator with small plastic vegetables that had magnetic bases.
The Presbyterians had suggested the Vacation Bible School at the Congregational Church down the road.
I was fascinated by the Catholic Church, its rituals and the devotion of the nuns, but getting on my knees on the seat of my desk and leaning on the back with the rosary beads was often too much for a rambunctious boy whose only church experience before then had been in the Sunday school and the summer vacation Bible school of the First Baptist Church in Hope.