Memory Game Lesson 1 VocabOnline version Review for your lesson 1 vocab retake quiz by Chelsea Senopole an outdated system of sending messages over long distances by using wires and electrical signals. pictures or words painted or drawn on a wall, building, etc. graffiti irrational autograph a part of a piece of writing that deals with one subject, begins on a new line, and is made up of one or more sentences. graphite not important or relating to what is being discussed right now. not normal or usual; not following the usual rules about what should be done; not regular in form or shape. the signature of a famous person not thinking clearly; not able to use reason or good judgment. telegraph not present or real; not existing. a shiny, black substance that is used in pencils. irrelevant not involving or using words; not able to speak. paragraph irregular nonexistent nonverbal