Key

The key to getting over a breakup is to give yourself time to heal.

Research is the key to writing a successful paper.

Proper communication is the key to a successful relationship.

Practice is the key to mastering a musical instrument.

The mechanic grabbed a wrench and a key to fix the car.

She needed a small key to open the lock on her diary.

He forgot his key at home and couldn't enter his apartment.

The maintenance worker used a key to turn off the water valve.

Organization is the key to keeping your work area clean.

The key to solving this math problem is to remember the order of operations.

Diligence is the key to completing a project on time.