obsidian
noun/əbˈsɪdiən/
Frequency rank: #13,708 most common English word
Meaning
A naturally occurring volcanic glass, typically black, formed from rapidly cooling lava.

Example sentence
The ancient arrowhead was carved from smooth, black obsidian found near the volcano.
Practice this word in the quiz
More words in ranks 13,701–13,800
- multipurposedesigned or used for several different purposes.
- navelThe small hollow or scar on the abdomen left by the umbilical cord; the belly button.
- newbiesPeople who are new to a particular activity, skill, or environment.
- nitricrelating to or containing nitrogen, especially in its higher valence.
- northerlyComing from or situated toward the north.
- pentshut in or confined; not released (usually describing emotions held back).
- perkyCheerfully lively and enthusiastic; full of energy.
- pompA showy display of splendor and ceremony, especially on a public occasion.
- poppera device or tool used to pop or open something, such as a bottle opener or corn popper.
- priestessA woman who officiates religious ceremonies or serves a deity in a religious role.