/pwa.sɔ̃/
the constellation Pisces 'the Fishes'; the zodiac sign Pisces, after the above
the plural of poisson (“fish”), from Latin piscis (plural pisces, hence Pisces); the municipality (and hence the canton) may have an entirely different (Latin? Celtic?) origin, possibly aligned by popular etymology
Poissons (a municipality in northern Champage); Poissons (a canton of Haute-Marne department, named after the above town, its capital)
the plural of poisson (“fish”), from Latin piscis (plural pisces, hence Pisces); the municipality (and hence the canton) may have an entirely different (Latin? Celtic?) origin, possibly aligned by popular etymology