The term 'evening out' can refer to a variety of activities. The crossword solutions for this term are SOIREE (6 letters), DATE (4 letters), and FLATTENING (10 letters). A SOIREE is a formal gathering, usually in the evening, where people come together to socialize and enjoy each other's company. A DATE is a social engagement between two people, often involving dinner or a movie. Flattening is the process of making something level or even.