idioms

  clear as a bell (very clear, easy to hear) I can hear your voice as clear as a bell. It’s a perfect recording. The sound is as clear as a bell. envocabulary.com

  clear as mud  informal, humorous (not clear or easy to understand) The instructions were incomplete and as clear as mud. What this inscription means is still as clear as mud. envocabulary.com

  coffee table book (a large, expensive book with a lot of pictures in it, kept on a table for people to look at) They’ll publish her artwork in a coffee-table book soon. There is a large coffee-table book in the waiting room. envocabulary.com

  keep your mind on something (keep paying attention to, stay focused on) I was so upset that I found it difficult to keep my mind on what I was doing. I want you to keep your mind on your lessons. envocabulary.com

  keep in mind (remain aware of, think of) When you go shopping, you must keep your budget in mind. It’s not raining now, but keep in mind that it might rain later on. envocabulary.com