Speech recognition refers to the ability of a machine or software to recognize and interpret spoken language and convert it into text form. This technology is getting popular day by day and several synonyms are available for it. One such synonym is voice recognition which is the process of identifying the speaker based on their voice characteristics. Another similar term is speaker recognition which focuses on identifying speaker identity, typically used in security purposes. Machine transcription is another synonym that defines the process of transcribing audio into text format. Additionally, speech-to-text technology is also a synonym as it refers to the process of converting spoken words into written form. These terms are often used interchangeably to express the same concept of speech recognition.