Definition of "aitch" []

• The letter h. (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.

• "Ireland we say 'aitch' that is the Presbyterians do - for some reason which escapes me Catholics say 'haitch' - another argument for integrated education."
• "Next they'll be saying "aitch" instead of "haitch" for the eighth letter of the alphabet."
• "H is the only other letter one could conceivably make into the word "aitch"; although it would take a Brit to justify it, it certainly makes more sense than zed."