The difference between Zip and Zip up

Zip as a noun:

The high-pitched sound of a small object moving rapidly through air.

Zip as a noun (informal):

Energy; vigor; vim.

Zip as a noun (British, NZ):

A zip fastener.

Zip as a noun (slang):

Zero; nothing.

Zip as a noun:

A trip on a zipline.

Zip as a noun (computing, informal):

A zip file.

Zip as a noun (programming):

Zip as a noun (slang):

An ounce of marijuana.

Zip as a pronoun (slang):

Zero; nothing.

Zip as a verb (transitive):

To close with a zip fastener.

Zip as a verb (transitive, figuratively):

To close as if with a zip fastener.

Zip as a verb (transitive, computing):

To compress (one or more computer files) into a single and often smaller file, especially one in the ZIP format.

Zip as a verb (transitive, programming):

To subject to the convolution mapping function.

Zip as a verb (intransitive):

(followed by a preposition) To move rapidly (in a specified direction or to a specified place) with a high-pitched sound.

Zip as a verb (intransitive, colloquial):

(followed by a preposition) To move in haste (in a specified direction or to a specified place).

Zip as a verb (transitive):

To make (something) move quickly

Zip as a verb:

To travel on a zipline.

Zip as a noun (US):

A ZIP code; a US postal code.

Zip as a noun (US, by extension):

Any postal code, for any country.

Zip up as a verb:

To close with a zip fastener.

Zip up as a verb (idiomatic, transitive, or, intransitive):

To close as if with a zip fastener.

Zip up as a verb:

To convert a computer file into a smaller package.