All of them are synonyms. Synonyms are words with similar meaning and not the same meaning. There may be a slight difference in the meaning. Some people are completely lacking in originality and imagination - and their talk shows it. Everything they say is trite, hackneyed, commonplace and humorless - their speech patterns are full of cliches and stereotypes, their phraseology is without sparkle. The term 'banal' is used for their speech. 'Cliche' is a Frech word that originally means "an eletrotype or stereotype plate for printing. Therefore a statement that is stereotype, fixed and lacking originality is called a cliche. "you speak in cliches" is the most devastating way of criticising the speaker.