designated

"The student council chose a representative to speak at the school assembly. "

"The school's gymnasium was used for basketball practice after school. "

"The specified dress code for the party included a formal gown and black tie. "

"to designate the boundaries of a country"

"The coach handicapped the younger players in the race by giving them a one-minute head start. "

"My younger sister is very good at distinguishing different types of flowers. "

"The fence clearly marks the boundaries between our yard and our neighbor's yard. "

"The teacher's description of the new math concept helped the students understand it better. "

"Her distinctive laugh, a high-pitched giggle, could be heard across the entire playground. "

"The teacher's designation of the new student as a "leader" was based on her early contributions to class discussions. "

"After years of hard work, Maria's graduation from university was a joyful celebration. "

"The guard blew his whistle to indicate imminent departure."