When it comes to synonyms for the word "minicassette", there are a few options. One is "microcassette", which is a similar type of tape used for voice recording and was popularized in the 1990s. Another option is "cassette tape", which was a staple of the music industry for many years, but is much larger than a minicassette. Additionally, the term "dictaphone" can be used to refer to any type of voice recording device, including minicassettes. Finally, some people may use "recording tape" or "tape recorder" to refer to minicassettes and the devices used to play them. Ultimately, all of these terms refer to some form of audio or voice recording technology.