T-offing is a word commonly used in golf and it refers to the act of starting a hole by hitting the ball from a tee. However, there are several synonyms that can be used instead of t-offing. One of these synonyms is "driving off", which means to start the hole by hitting the ball from the tee with a driver club. Another synonym is "teeing up", which refers to the act of placing the ball on a tee before beginning a hole. Additionally, "commencing play" is another synonym that can be used instead of t-offing. All of these synonyms can be used interchangeably when talking about the start of a golf hole.