spotter
n.— «Cal Fire blamed the delay on a shortage of military helicopter managers, better known as spotters—trained wild-land firefighters who help military pilots position water drops and communicate with firefighters in the air and on the ground.» —“ Grounded military helicopters blamed on lack of ‘spotters’” by Tony Manolatos Union-Tribune (San Diego, California) Nov. 3, 2007. (source: Double-Tongued Dictionary)
Further reading
When a teenager went a week without talking as part of a school project, he noticed a surprising side effect: Instead of rehearsing a response to what other people were saying to him, he was focused on listening — and feeling smarter as a result...
Melissa in Greensboro, North Carolina, has been sparring with the Gen Z members of her family over the shifting meanings of words. Her kids use aesthetic as an adjective to mean “aesthetically pleasing,” as in That’s so aesthetic. They also refer to...