A webcast is an online broadcast that can be accessed via the internet in real-time. In order to help diversify language use, there are several synonyms that can be used in place of the word webcast. A synonym for webcast is a live stream that can be viewed online. Another word that can be used in place of webcast is a web transmission. Additionally, a video conference can be described as a webcast. Another possible word that can be used is an online seminar or virtual event. When searching for synonyms for webcast, it is essential to choose the term that best suits the context of the situation.