What are the two plural forms of hippopotamus?

Answer 1

Fish - fish or, when referring to different types of fish: fishes

lynx - lynxes

grass - grass or, when referring to different types of grass: grasses

hippopotamus - hippopotami or hippopotamuses

Answer 2

Grasses (This refers to different varieties of the plant. For example, rye and Bermuda are two different grasses.)

Hippopotami (Almost all words ending in -us are from the Latin, and that singular ending transforms to an -i in the plural.)

Answer 3

There are two accepted plurals of hippopotamus: hippopotamuses and hippopotami. In order to avoid debate, "hippos" is more often used.

Answer 4

The plural of hippo is hippos.

Answer 5

hippopotomuses

Answer 6

hippopotami.

Answer 7

hipopipoinon