| noun | a police investigation to determine the perpetrator “detection is hard on the feet” |
| verb | discover or determine the existence, presence, or fact of “She detected high levels of lead in her drinking water” |
| detect | verb | discover or determine the existence, presence, or fact of |
| sleuth | verb | watch, observe, or inquire secretly |
| detection | noun | the act of detecting something; catching sight of something |
| detector | noun | electronic equipment that detects the presence of radio signals or radioactivity |
| detecting | noun | a police investigation to determine the perpetrator |
| observable | adjective | capable of being seen or noticed |
| observant | adjective | quick to notice; showing quick and keen perception |
| observer | noun | a person who becomes aware (of things or events) through the senses |
| observation | noun | a remark expressing careful consideration |
| observance | noun | the act of noticing or paying attention |
| find | noun | the act of discovering something |
| finder | noun | someone who is the first to observe something |
| finding | noun | something that is found |
| discoverer | noun | someone who is the first to observe something |
| discovery | noun | something that is discovered |
| notice | noun | the act of noticing or paying attention |