concurrent

"The school principal has jurisdiction over student behavior during lunch breaks. "

"The conjunction of the two roads created a traffic jam. "

"The accompanied minor was nervous about flying alone, but a flight attendant stayed with him until takeoff. "

"The alarm clock and the baby's cry went off simultaneously. "

"The judge was a supernumerary, helping the regular judges whenever there was a surplus amount of work."

"to contribute articles to a journal"

"to contribute articles to a journal"

"The team's success was due to the contributory efforts of every member. "

"Cervantes was a contemporary of Shakespeare."

"The chef was cooking the vegetables and grilling the steak concurrently, so dinner would be ready quickly. "

"Geoffrey accompanied the group on their pilgrimage."

"My younger sister received a scholarship to attend the university. "