Pronunciation: /ki/
noun a small piece of shaped metal with incisions cut to fit the wards of a particular lock, which is inserted into a lock and turned to open or close it
A1 The key to success is hard work and dedication.
A2 I always carry my house key with me in case I get locked out.
B1 One key factor in achieving your goals is setting realistic deadlines.
B2 Effective communication is key in any team project.
C1 The key to effective leadership is being able to inspire and motivate others.
C2 Attention to detail is a key characteristic of successful entrepreneurs.
verb to provide a lock with a key to operate it
adjective of crucial importance; central or essential
A1 The key ingredient in this recipe is salt.
A2 Having good communication skills is key to success in any job.
B1 Time management is a key factor in completing projects on schedule.
B2 The key point of the presentation was to highlight the benefits of the new product.
C1 The key issue in the debate is how to address climate change effectively.
C2 Developing a strong network of contacts is key to advancing in the business world.
formal The key to success is hard work and dedication.
informal The key to acing the exam is studying the practice questions.
slang The key to throwing a great party is having good vibes and good music.
figurative Communication is the key that unlocks the door to understanding in any relationship.
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