Definition of "blastoff" [blast•off]

• The launch, especially of a rocket. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "When prompted to log in, use "blastoff" for both the username and password."
• "Check out the article in the Richmond KY Register - use "blastoff" as both the Member ID and password for access."
• "Late Thursday, NASA officials said there was a roughly a 30 percent chance of winds and clouds delaying blastoff, up from about 20 percent previously."