Plain English Meaning
In the ACS, a Task is one specific topic or maneuver the applicant has to know and perform on the checkride, with the exact things they must understand, the risks they must manage, and the skills they must show.
Full Definition
Within the Airman Certification Standards (ACS), Tasks are the specific subject elements grouped under each Area of Operation that an applicant must demonstrate during a practical test. Each Task lists the knowledge, risk management, and skill elements the applicant is expected to know and perform to the published standards.
Context Anchor
Seen in ACS-based training plans, lesson plans, and FAA practical test preparation.