There's no such word as davide, did you mean divide? The plural of divide is divides.
pixaxe is the singular version, pickaxes is the plural version.
The plural of googol is googols.
The plural version of bat is bats.
Suppers is the plural version of supper.
ounce is the singular version and ounces is plural.
The plural of "glass" is "glasses."
These.
The plural of "aula" is "aulas."
It is peninsulas
dashes
Feet .
enemies