arch (architectural element) / an arch of greenery / arch (inverted U shape) / (baseball) home run

A genius loci; a local spirit residing in the ground.

eight

fast / swift / quick / rapid

(chemistry) ethyl

(marine biology) juvenile

a day believed to have a special relation to a certain deity (i.e the day the deity was born or died)

warm land; warmer climate

(Internet slang) to watch; to monitor (especially as part of negative criticism)

(Internet slang) watching; monitoring (especially as part of negative criticism)