1. The name of the letter H; the eighth letter of the English alphabet.
Usage: Common in British English; also used in American English, especially in educational contexts.

Examples

• The word 'house' begins with an aitch.
• In British English, people often say 'aitch' rather than 'H' when spelling out words.
• The teacher asked the student to write the letter aitch on the board.
• Some people drop the aitch at the beginning of words like 'honest' and 'hour'.
• The alphabet song includes the line 'G, H, I, J, K' where H is pronounced as aitch.