It is peninsulas
The plural version of bat is bats.
Suppers is the plural version of supper.
The plural of board is boards.
there is no instance that i can think of in the English language that uses the plural version of "herself".
MULTIPLE is the plural version of the identity adjective SINGLE.
pixaxe is the singular version, pickaxes is the plural version.
The plural version of bat is bats.
The plural of googol is googols.
Suppers is the plural version of supper.
These.
ounce is the singular version and ounces is plural.
dashes
enemies
Feet .
Mysteries
Trousers
"Obstacles" is a plural word. Its singular version is "obstacle". Ray