delimitation

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

"The divers encountered a huge school of mackerel."

"The fence marks the boundary between the park and my neighbor's yard. "

"Walk down the street until you see a hotel on the right."

"The teacher marked the student's paper with a red pen. "

"Go easy on him: he is but a child."

"The children were running to catch the school bus. "

"The school's playground was a favorite spot for the children after their classes. "

"There are several existing limits to executive power."

"I brush my teeth regularly to prevent them from turning yellow."

"He helped his grandfather cook breakfast."

"The teacher is using cones to delimiting the boundaries of the playing field for the students. "