I. noun — [ mass noun] 1. anxiety or fear that something bad or unpleasant will happen • he felt sick with apprehension
• [ count noun]
she had some apprehensions about the filming.
2. understanding; grasp • his first apprehension of such large issues.
3. the action of arresting someone • they acted with intent to prevent lawful apprehension.
– origin late Middle English (in the sense ‘learning, acquisition of knowledge’): from late Latin apprehensio(n-), from apprehendere ‘seize, grasp’ (see apprehend).