obsidian

As a noun obsidian

is obsidian.

As a proper noun jet is

a town in oklahoma.

As nouns the difference between labradorite and obsidian

is that labradorite is a plagioclase feldspar mineral, calcium sodium aluminum silicate, often very coarsely crystalline, used as a decorative stone for carvings and building façades while obsidian is a type of black glass produced by volcanoes.

As an adjective obsidian is

black.

As nouns the difference between harakiri and obsidian

is that harakiri is hara-kiri while obsidian is obsidian.

As an adjective insidious

is producing harm in a stealthy, often gradual, manner.

As a noun obsidian is

obsidian.

As nouns the difference between futon and obsidian

is that futon is while obsidian is obsidian.

As nouns the difference between obsidian and fu

is that obsidian is a type of black glass produced by volcanoes while fu is flux unit.

As an adjective obsidian

is black.

As an interjection fu is

fuck you.

As a proper noun Fu is

{{surname|Chinese|from=Chinese}.

As an initialism FU is

follow-up.

As a verb hi

is to call.

As a noun obsidian is

obsidian.

As a noun obsidian

is obsidian.

As a proper noun stone is

.

As a noun obsidian

is obsidian.

As a symbol ff is

.