English definition of “both”
/bəʊθ/ pronoun, determiner, quantifier
› used to talk about two people or things: The children both have red hair. Both her parents are dead. Both of my sisters are teachers. Would you like cream, ice cream, or both?
both...and... › used to emphasize that you are talking about two people or things: Both Jack and his wife are keen chess players. → See also have the best of both worlds