Follow-up is a term commonly used in the business world that refers to a post-meeting check-in or reminder to ensure that everything is moving forward as planned. While commonly used, there are various synonyms that can be used in place of "follow-up" to add some variation into your conversations. Some synonyms for follow-up include "check-in," "tracking," "progress update," "continuation," "pursuit," "monitoring," "further action," and "subsequent communication." Regardless of what word you choose to use, the important thing is that it conveys the message that you are committed to ensuring that things are moving forward and that everyone is on the same page.