Give the brief definition to the following words 1 Lost generation

6) Detective novel- Detective fiction is a subgenre of crime fiction and mystery fiction in which an investigator or a detective—either professional, amateur or retired—investigates a crime, often murder. ... Some of the most famous heroes of detective fiction include C. Auguste Dupin, Sherlock Holmes, and Hercule Poirot.
The traditional elements of the detective story are: (1) the seemingly perfect crime; (2) the wrongly accused suspect at whom circumstantial evidence points; (3) the bungling of dim-witted police; (4) the greater powers of observation and superior mind of the detective; and (5) the startling and unexpected denouement, ...
A few types of detective fiction include historical mystery, serial killer mystery, police procedural, and locked-room mystery.
7) Beat generation- Beat movement, also called Beat Generation, American social and literary movement originating in the 1950s and centred in the bohemian artist communities of San Francisco’s North Beach, Los Angeles’ Venice West, and New York City’s Greenwich Village. Its adherents, self-styled as “beat” (originally meaning “weary,” but later also connoting a musical sense, a “beatific” spirituality, and other meanings) and derisively called “beatniks,” expressed their alienation from conventional, or “square,” society by adopting a style of dress, manners, and “hip” vocabulary borrowed from jazz musicians. They advocated personal release, purification, and illumination through the heightened sensory awareness that might be induced by drugs, jazz, sex, or the disciplines of Zen Buddhism. The Beats and their advocates found the joylessness and purposelessness of modern society sufficient justification for both withdrawal and protest.
The Beat Generation is known for its rejection of materialism and the standards of the day, experimentation with drugs, and spiritual and sexual liberation. It evolved in the 1960's to become part of the hippie and larger counterculture movements.