0 someone who was a teacher, doctor, cleaner, etc. in the past:
Duggan, a TV personality and one-time journalist, made the announcement last week.
1 only once:
4 used for describing what someone or something was in the past:
Once the page was picked up by search engines, the number of new and one-time visitors increased significantly.
The economic value of a one-time campaign to supplement such a high coverage two-dose vaccination programme depends on the historical vaccination coverage.
By design, many online encounters are intended as short-term or one-time interactions.
Both minor and major toxic events produced a one-time cost increase and quality-of-life reduction.
These are reported, one-time events in the form of a narrative statement or story.
The married couple included the daughter of a landowning family of one-time gentry elites and the son of a low-status family.
Unlike one-time sales, subscriptions generate steady cash flow and provide a convenient benchmark by which to measure growth.
With habitual stories, the imperfect was true, and the preterite was false; with one-time event stories, the preterite was true, whereas the imperfect was false.
