poisson
The French word for fish: singular: un poisson, le poisson plural: des poissons, les poissons
un poisson
In French, the word for fish is "poisson," which is masculine. Therefore, you would say "le poisson" for "the fish." French nouns are assigned a gender, and "poisson" follows the masculine grammatical rules.
poissons de vol................is the french word for flying fish.
Le poisson
'Un poisson'
That's correct for the French name and the French word for "fish". Did you mean the English word "poison"?
un aquarium (masc.)
un poisson bleu
un poisson volant
plat de poisson
The French translation for tuna is thon. They also call it thone.