"Go on the air" is a term used in broadcasting, which means to begin broadcasting a radio or television program. There are various synonyms for this term that can be used to convey the same meaning. Some of the synonyms for "going on air" include "airing", "broadcasting", "transmitting", "telecasting", "streaming", and "live streaming". All these words essentially mean the process of starting the transmission of a program on a particular platform. These synonyms can be used interchangeably depending on the context and the type of broadcast being done. Choosing the appropriate synonym can add variety to the writing or conversation.