invisible

As an adjective invisible

is unable to be seen; out of sight; not visible.

As a proper noun anonymous is

a hacktivist group opposed to internet censorship, government corruption, homophobia and scientology.

As adjectives the difference between invisible and phantasmal

is that invisible is unable to be seen; out of sight; not visible while phantasmal is of or pertaining to ghosts or phantoms.

As a verb hiding

is .

As a noun hiding

is (uncountable) a state of concealment or hiding can be (colloquial|countable) a beating or spanking.

As an adjective invisible is

unable to be seen; out of sight; not visible.

As an adjective invisible

is unable to be seen; out of sight; not visible.

As a verb disappear is

(label) to vanish.

As a noun spectrum

is specter, apparition.

As an adjective invisible is

unable to be seen; out of sight; not visible.

As a noun view

is (label) visual perception.

As a verb view

is to look at.

As an adjective invisible is

unable to be seen; out of sight; not visible.

In internet|lang=en terms the difference between invisible and ghost

is that invisible is (internet) apparently, but not actually, offline while ghost is (internet) an unresponsive user on irc, resulting from the user's client disconnecting without notifying the server.

As an adjective invisible

is unable to be seen; out of sight; not visible.

As a noun ghost is

(rare) the spirit; the soul of man.

As a verb ghost is

(obsolete|transitive) to haunt; to appear to in the form of an apparition.

As an adjective invisible

is unable to be seen; out of sight; not visible.

As a verb counseled is

(counsel).

As adjectives the difference between invisible and secret

is that invisible is unable to be seen; out of sight; not visible while secret is being or kept hidden.

As a noun secret is

(countable|uncountable) knowledge that is hidden and intended to be kept hidden.

As a verb secret is

to make or keep secret.

As adjectives the difference between perceptible and invisible

is that perceptible is able to be perceived, sensed, or discerned while invisible is unable to be seen; out of sight; not visible.

As a noun perceptible

is anything that can be perceived.