Leftover vs Leftovers - What's the difference?

As nouns the difference between leftover and leftovers

is that leftover is something left behind; an excess or remainder while leftovers is plural of lang=enCategory:English plurals.

is remaining; left behind; extra; in reserve.

* left over, left-over

(-)

Remaining; left behind; extra; in reserve.

Do you want some of the leftover supplies from the event?

(chiefly, in the plural, usually, of food) Remaining after a meal is complete or eaten for a later meal or snack.

I have some leftover spaghetti in the fridge, so I don't plan to cook tonight.

Not leftovers again.

* When used after a verb (as part of a predicate phrase), use two separate words: *: I can walk for miles and still have energy left over.

(en noun)

Something left behind; an excess or remainder.

It's a leftover from yesterday, but it's still perfectly good.

The entire wheel of cheese is a leftover from the party.

(wikipedia leftovers)

Food remaining after a meal; excess food eaten later.

I had leftovers from yesterday for dinner tonight.