waterleaf

Waterlettuce is often a misspelling of waterleaf.

Waterlettuce has no English definition.

As a noun waterleaf is

any plant of the genus genus: Hydrophyllum.

As nouns the difference between waterleaf and grass

is that waterleaf is any plant of the genus genus: Hydrophyllum while grass is any plant of the family Poaceae, characterized by leaves that arise from nodes in the stem and leaf bases that wrap around the stem, especially those grown as ground cover rather than for grain.

As a verb grass is

to lay out on the grass; to knock down (an opponent etc.).

As a proper noun Grass is

{{surname|lang=en}.