The time, place and circumstance in which something (such as a story or picture) is set; context; scenario. / The act of setting.

that disappears below the horizon

plural of setting

To save or put aside

simple past tense and past participle of set (meaning to divide students into different ability groups)

complete group of something (e.g., a chess set)

(music) To adapt a literary work by adding music (and often song)

(intransitive, idiomatic) To begin working. / (intransitive, idiomatic, with gerund) To begin working at. / (transitive) To cause to begin working.

plural of crystal set

(idiomatic, transitive) To write. / (transitive) To fix; to establish; to ordain.