5 ►FAMILY CONNECTION◄ sb’s roots your connection with a place because you were born there, or your family used to live there: Naita has come to Ghana in search of her roots．

　　6 put down roots if you put down roots somewhere, you start to feel that this place is your home and to have relationships with the people there

　　7 ►TOOTH/HAIR ETC◄ the part of a tooth, hair etc that fixes it to the rest of your body

　　8 take root a） if an idea takes root, people begin to accept or believe it: The concepts of democracy and free trade are finally beginning to take root．b） if a plant takes root, it starts to grow where you have planted it

　　9 have a （good） root round informal especially BrE to search for something by moving other things around

　　10 root and branch if you destroy something root and branch, you get rid of it completely and permanently because it is bad

　　11 ►LANGUAGE◄ technical the basic part of a word which shows its main meaning, to which other parts can be added: The suffix ‘ness’ can be added to the root ‘cold’ to form the word ‘coldness’．—compare stem1 （4）

　　12 ►MATHEMATICS◄ technical a number that when multiplied by itself a certain number of times, equals the number that you have: 2 is the fourth root of 16．

　　       —see also cube root, square root, grass roots

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