The phrase "smoke and mirrors" usually refers to a form of deception or trickery. There are several synonyms that can be used to convey the same meaning, such as "illusion," "deceit," "trickery," "misdirection," "chicanery," "subterfuge," "dissimulation," "deception," "duplicity," "manipulation," "sleight of hand," and "conjuring." All of these words convey the idea that something is being concealed or made to appear different than it actually is. To use a synonym in place of "smoke and mirrors" can add variety to your writing while accurately conveying the intended meaning.