windows

As a noun storefront is

the side of a store (or other shop) which faces the street; usually contains display windows.

As a proper noun facebook

is a social-networking web site, founded in 2004 and originally known as the facebook .

As a verb facebook

is to use the social-networking site.

As a noun openings is

.

As a noun icon

is an image, symbol, picture, or other representation usually as an object of religious devotion.

As a noun neon is

neon (the gas).

As nouns the difference between windows and rattle

is that windows is plural of window while rattle is a sound made by loose objects shaking or vibrating against one another.

As a verb rattle is

to create a rattling sound by shaking or striking.

As an interjection hello

is .

As a noun hello

is "!" or an equivalent greeting.

As a verb hello

is to greet with "hello".

As a noun tests is

.

As a verb tests is

(test).

As a noun desktop

is the top surface of a desk.

As an adjective desktop

is designed for use on a desk or similar piece of furniture.

As a noun macbook is

a -brand notebook computer, manufactured by apple computer.