heatwave [heatwaves]◼◼◼(period of very hot weather) noun [UK: ˈhiː.tweɪv] [US: ˈhiː.tweɪv]The little dog drank all of his water during the heatwave. = Le petit chien a bu toute son eau pendant la canicule.
dog days◼◻◻(the days between early July and early September) noun [UK: dɒɡ deɪz] [US: ˈdɔːɡ ˈdeɪz]
dog days◼◻◻(unpleasantly hot days) noun [UK: dɒɡ deɪz] [US: ˈdɔːɡ ˈdeɪz]