aitch
Concise Oxford English Dictionary © 2008 Oxford University Press:
aitch/eɪtʃ/
▶noun the letter H.
– phrases
drop one's aitches fail to pronounce the letter h at the beginning of words.
drop one's aitches fail to pronounce the letter h at the beginning of words.
– origin C16: from OFr. ache.
'aitch' also found in these Oxford entries:

