restraint

"My friend told me there was something in the box, but I didn't know what it was yet. "

"The dog's leash restrains him from chasing squirrels in the park. "

"My sister brought several books to the library, and that one is about dinosaurs. "

"Can you fasten these boards together with some nails?"

"The talking was loud during the school assembly. "

"The construction worker checked the ties that held the scaffolding together to ensure they were secure. "

"The fence around the playground secures the children from traffic. "

"The teacher's reserve about showing favoritism to certain students ensured fairness in the classroom. "

"The government has complete control over the situation."

"The teacher's caution about the upcoming exam helped the students prepare better. "

"The teacher told us that the next exercise is to write an essay."

"Make sure all the restraints are tight."