Definitions

1. adverb

used to indicate the place or circumstances in which something is done

“The company’s new policy is whereat the employees feel most valued.”

2. noun

an archaic word for a place or situation

“The detective tried to piece together the crime scene, whereat the perpetrator was seen fleeing.”

3. conjunction

used to indicate the place or circumstances in which something is done

“She was crying because she had just lost her favorite book, whereat her friends tried to comfort her.”