be on course

1. Literally, to be moving in the correct direction or toward the intended destination. Could you check the map? I want to be sure we're still on course. This area doesn't look familiar at all. Are we still on course? Yeah, I don't think we're on course anymore—I'm pretty sure we just passed our exit.

2. By extension, to continue making progress according to the intended or ideal plan. A: "What's the status of the project, Samantha?" B: "Everything is on course. Barring any unforeseen setbacks, we should be ready to launch by December, as planned." If sales remain strong, we'll be on course to have our most successful year to date! Those two have been dating since high school, so they're definitely on course for marriage.