noun

• The action of watching or catching sight of something or someone.

  ‘he withdrew from his point of espial’

  More example sentences

  • ‘Presently he moved forward, and, with head still bent, approached the lower end of the garden, where, in a wall higher than that over which Goldthorpe made his espial, there was a wooden door.’
  • ‘Among the crowd entering the exhibition he could easily keep her in sight without risk of his espial being detected.’