1Engaged in work.
1.1In action: researchers were convinced that one infectious agent was at work
More example sentences
- I call Mark as both of us love to watch the industrious little blighters at work.
- Nature is busy at work even in a place of towering bricks and mortar with concrete sprawl.
- There will be a chance for the public to step inside an industrial museum and see history at work.
Definition of at work in:
- The British & World English dictionary