In intransitive terms the difference between side and separate

is that side is to ally oneself, be in an alliance, usually with "with" or rarely "in with while separate is to divide itself into separate pieces or substances.

In transitive terms the difference between side and separate

is that side is to furnish with a siding while separate is to cause (things or people) to be separate.

As an adverb side

is widely; wide; far.

As a proper noun Side

is an ancient city on a small peninsula on the Mediterranean coast of Anatolia, settled by Greeks from Cyme.

As an adjective animous

is animose.

As a noun enmity is

the quality of being an enemy; hostile or unfriendly disposition.

In transitive terms the difference between concretize and cement

is that concretize is to make substantial, real, or tangible; to represent or embody a concept through a particular instance or example while cement is to overlay or coat with cement.

As a noun cement is

a powdered substance that develops strong adhesive properties when mixed with water.

In lang=en terms the difference between x and rack

is that x is ecstasy, a particular street drug while rack is to strike a male in the groin with the knee.

As nouns the difference between x and rack

is that x is any mark that looks like that letter, such as such a mark made by a person who cannot read or write, in lieu of a signature while rack is a series of one or more shelves, stacked one above the other.

As an adjective X

is suitable only for those aged 16 or (later) 18 years and over.

As a verb rack is

to place in or hang on a rack.

As a verb participates

is third-person singular of participate.

As an adjective talkative is

tending to talk a lot.

As a proper noun house

is (us) the house of representatives, "the house".

As a verb travel is

to be on a journey, often for pleasure or business and with luggage; to go from one place to another.

As a noun travel is

the act of traveling.

As an adjective systematic

is carried out using a planned, ordered procedure.

As a noun agriculture is

the art or science of cultivating the ground, including the harvesting of crops, and the rearing and management of livestock; tillage; husbandry; farming.

As nouns the difference between income and increase

is that income is money one earns by working or by capitalising on the work of others while increase is an amount by which a quantity is increased.

As a verb increase is

to become larger.

As a noun community

is a group sharing a common understanding and often the same language, manners, tradition and law see civilization.

As a symbol res is

(label) (l).

As a proper noun foster

is , variant of forster.

As a noun guardian is

guardian.