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