Q: What does the 'Revision' status mean for a journal?

It’s not entirely clear by your query whether these were the statuses before you submitted the revised paper or after. Typically, these are the statuses, respectively, for when the paper is in peer review (‘Awaiting reviewer scores’) and after (‘Revision’). So, if you mean these are the statuses after submitting the revised paper, that’s unusual. However, if you mean the statuses haven’t changed since you received the revision request, that could mean that the journal hasn’t yet updated the status in their system. In either case, if you wish to be entirely clear, you may write to the journal requesting a clarification.

For more help with statuses, you may find this handbook useful: A guide to understanding journal statuses

And for help with writing to the journal across a range of scenarios, you may find this handbook useful: A practical handbook of templates for communicating with the journal

Note: Both are available from R Upskill, a sister brand providing learning programs for a variety of researcher needs, from writing to submission to publication and even promotion. You may look through the site to know more.

For now though, all the best for the next on your paper!