The difference between Even and Flatten

When used as verbs, even means to make flat and level, whereas flatten means to make something flat or flatter.

Even is also noun with the meaning: an .

Even is also adverb with the meaning: exactly, just, fully.

Even is also adjective with the meaning: flat and level.

check bellow for the other definitions of Even and Flatten

Even as an adjective:

Flat and level.

Examples:

"Clear out those rocks. The surface must be even."
Even as an adjective:

Without great variation.

Examples:

"Despite her fear, she spoke in an even voice."
Even as an adjective:

Equal in proportion, quantity, size, etc.

Examples:

"The distribution of food must be even."
Even as an adjective (not comparable, of an integer):

Divisible by two.

Examples:

"Four, fourteen and forty are even numbers."
Even as an adjective (of a number):

Convenient for rounding other numbers to; for example, ending in a zero.
Even as an adjective:

On equal monetary terms; neither owing nor being owed.
Even as an adjective (colloquial):

On equal terms of a moral sort; quits.

Examples:

"You biffed me back at the barn, and I biffed you here—so now we're even."
Even as an adjective:

parallel; on a level; reaching the same limit.
Even as an adjective (obsolete):

Without an irregularity, flaw, or blemish; pure.
Even as an adjective (obsolete):

Associate; fellow; of the same condition.

Even as a verb (transitive):

To make flat and level.

Examples:

"We need to even this playing field; the west goal is too low."
Even as a verb (transitive, obsolete):

To equal.
Even as a verb (intransitive, obsolete):

To be equal.

Examples:

"Thrice nine evens twenty seven."

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Even as a verb (transitive, obsolete):

To place in an equal state, as to obligation, or in a state in which nothing is due on either side; to balance, as accounts; to make quits.
Even as a verb (transitive, obsolete):

To set right; to complete.
Even as a verb (transitive, obsolete):

To act up to; to keep pace with.

Even as an adverb (archaic):

Exactly, just, fully.

Examples:

"I fulfilled my instructions even as I had promised."

"You are leaving tonight? — Even so."

"This is my commandment, that ye love one another, even as I have loved you."
Even as an adverb:

Examples:

"'Even a blind squirrel finds an acorn sometimes."

"Did you even make it through the front door?"

"That was before I was even born."
Even as an adverb:

Examples:

"I was strong before, but now I am even stronger."
Even as an adverb:

; rather, that is.

Examples:

"My favorite actor is Jack Nicklaus. Jack Nicholson, even."
Even as an adverb:

also

Even as a noun:

An .

Examples:

"So let's see. There are two evens here and three odds."

Flatten as a verb (transitive):

To make something flat or flatter.

Examples:

"As there was a lot of damage, we chose the heavy roller to flatten the pitch."

"Mary would flatten the dough before rolling it into pretzels."
Flatten as a verb (reflexive):

To press one's body tightly against a surface, such as a wall or floor, especially in order to avoid being seen or harmed.
Flatten as a verb (transitive):

To knock down or lay low.

Examples:

"The prize fighter quickly flattened his challenger."
Flatten as a verb (intransitive):

To become flat or flatter; to plateau.

Examples:

"Prices have flattened out''."
Flatten as a verb (intransitive):

To be knocked down or laid low.
Flatten as a verb (music):

To lower by a semitone.
Flatten as a verb:

To make vapid or insipid; to render stale.
Flatten as a verb (programming, transitive):

To reduce (a data structure) to one that has fewer dimensions, e.g. a 2×2 array into a list of four elements.
Flatten as a verb (computer graphics, transitive):

To combine (separate layers) into a single image.