noun, feminine/ɡe.ʁit/plural: guérites
sentry-box; worker's hut
“Le gardien ferma soigneusement la porte de sa guérite – je n’en vis guère l’utilité – et, avant de partir, se mettant dans la peau d’un étranger, il essaya de l’ouvrir” — The guard carefully closed the door to his sentry-box - I failed to see the point of it - and, before leaving, pretending to be a stranger, he tried to open it.
Inherited from Old French garite, guarite, probably ultimately from guarir (“protect”). Compare Spanish garita.