Search

Use your microphone to enter your search

Main navigation

Games
World
U.S.
People
Math & Science
Language Arts
Homework
Holidays & Calendars
Tools

ADVERTISEMENT

/ School Word

What does immutable mean?

immutable

Something that is immutable

makes people happy.
can?t be changed.
is really loud.

Yesterday's Word Quiz | Tomorrow's Word Quiz

Analogy Quiz
Spelling Bee
Advanced Word Quiz

ADVERTISEMENT

Flashcards

Hone your math skills with our flashcards!

ADVERTISEMENT

New Games

Discover several new games that we've added to our collection!

Hangman

Grow your vocab the fun way!

Educate, entertain, and engage with Factmonster.

Search input Search submit button

From the solar system to the world economy to educational games, Fact Monster has the info kids are seeking. Our site is COPPA and kidSAFE-certified, so you can rest assured it's a safe place for kids to grow and explore.

2000-2019Sandbox Networks, Inc. All Rights Reserved.

FactMonster.com is certified by the kidSAFE Seal Program. To learn more, click on the seal or go to www.kidsafeseal.com.

About Us
Advertise with Factmonster
Terms of Use
Contact Us
Citing Factmonster
Do Not Sell My Info (for CA Residents)

Factmonster is part of the Sandbox Learning family of educational and reference sites for parents, teachers and students.

For more information on our use of cookies and usage policies, please visit our PRIVACYPOLICY.

FEN Learning is part of Sandbox Networks, a digital learning company that operates education services and products for the 21st century.