- 1[countable] a sharp, usually repeated, sound made in the throat, that is caused by a sudden movement of the diaphragm and that you cannot control She gave a loud hiccup.
- 2(the) hiccups [plural] a series of hiccups I ate too quickly and got the hiccups. He had the hiccups.
- 3[countable] (informal) a small problem or temporary delay There was a slight hiccup in the schedule. We've planned it down to the last detail — we don't want any unexpected hiccups.