summer vs canicule

summer and canicule both are nouns.

Word	Noun	Adjective	Verb	Adverb
summer	Yes	No	Yes	No
canicule	Yes	No	No	No

summer (noun)	canicule (noun)
the warmest season of the year; in the Northern Hemisphere it extends from the summer solstice to the autumnal equinox	the hot period between early July and early September; a period of inactivity
the period of finest development, happiness, or beauty

summer (verb)	canicule (verb)
spend the summer