Used to express surprise, wonder, triumph, puzzlement, or pique.(interjection)
Latin hoc anno (this year)(abbreviation)
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.
Use "ha" in a sentence
"But it was, well, what it was, so I just kept my face buried in my plate, with an occasional soft *ha ha ha* for the Captain."
"Hed be what I call useful just now, Mrs.C. ha, ha!"
"I believe "ha, _ha_," by the way, is an ejaculation confined entirely to thwarted villains in stageland; but if I am a villain, I'm not thwarted yet."