Matching Pairs How to improve your memoryOnline version Vocabulary by Elif Kesebir 1 adjustment 2 knock-on effect 3 tune in 4 visualise 5 vital 6 familiar to form a picture of someone or something in your mind, in order to imagine or remember him, her, or it easy to recognize because of being seen, met, heard, etc. before to watch or listen to a particular television or radio programme or station necessary for the success or continued existence of something; extremely important a small change it causes other events or situations, but not directly