staining, maculation, detective work, catching, police investigation, espial, spotting, sensing, perception, undercover work, signal detection, spying, contracting, detecting, sleuthing.
The stairs were so dark that she had to feel her way: she could smile without fear of detection.
The criminal Bagris still usually travel about in the disguise of Gosains and Bairagis, and are very difficult of detection
except to real religious mendicants.
" If I escape detection,"
said I. " If we're detected," said Sapt.