The term 'Kitchen Bar' is a type of restaurant that serves food and drinks in a casual atmosphere. The crossword solution for this term is 'OLEO, ' which is a four-letter word meaning 'MARGARINE.' MARGARINE is a butter substitute made from vegetable oils, and it is often used in cooking and baking. Kitchen Bars typically serve MARGARINE with their meals, so the crossword solution 'OLEO' is an appropriate answer for the term 'Kitchen Bar.'