obsidian

Anonymous
1 word 1 learner

Learn words with Flashcards and other activities

Definition First
Print Flashcards

Other learning activities

Answer a few questions about each word. Use this to prep for your next quiz! Compete with other teams in real time to see who answers the most questions correctly! Test your spelling acumen. Read the definition, listen to the word and try spelling it!

Teaching tools

Create and assign quizzes to your students to test their vocabulary. Assign learning activities including Practice, Vocabulary Jams and Spelling Bees to your students, and monitor their progress in real-time.

Full list of words from this list:

words only definitions & notes
  1. obsidian
    glass formed by the cooling of lava without crystallization
Created on Wed Sep 08 13:49:38 EDT 2010

Sign up now (it’s free!)

Whether you’re a teacher or a learner, Vocabulary.com can put you or your class on the path to systematic vocabulary improvement.