lock

"The front door has a strong lock, so we know the house is secure. "

"The school's computer lab has a lock on the printer; only one person can use it at a time. "

"The boat captain carefully navigated the lock, waiting for the gates to open and close to raise the boat to the next level. "

"The lock on the old school door was jammed, preventing the teacher from unlocking it. "

"The teacher had a firm lock on the classroom; the students were quiet and attentive. "

"The new school program is a lock for success; everyone is excited about it. "

"The lock in the rugby team is usually the tallest player on the field. "

"The intricate lock of the drawer prevented access to the important documents. "

"The classroom was a lock after school, preventing students from entering. "

"The bicycle lock prevented the wheel from turning. "

"The wrestler used a strong lock to take down his opponent. "

"If you put the brakes on too hard, the wheels will lock."

"Remember to lock the door when you leave."

"This door locks with a key."

"We locked arms and stepped out into the night."

"a pop and lock routine"

"The engineers will lock the canal to regulate the water level. "

"The tugboat carefully locked the barge in the canal lock. "

"In the fight, the warrior locked his opponent's sword arm, preventing him from attacking. "

"The teacher locked the discussion thread about the upcoming test, so students couldn't add any more questions. "

"Frequently vandalized pages are generally locked to prevent further damage."

"The sheepdog had a thick lock of wool on its forehead. "

"The farmer used a small lock of straw to cushion the fragile eggs. "

"The miller's apprentice received his daily lock of grain. "