hiccup

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A spasm of the diaphragm resulting in a rapid, involuntary inhalation that is stopped by the sudden closure of the glottis and accompanied by a sharp, distinctive sound.
2. n. An attack of these spasms. Often used with the.
3. n. The sound made by such a spasm or a sound resembling it: "the urgent hiccup of a police siren” ( John Updike).
4. v. To make a hiccup or a sound like a hiccup.
5. v. To have an attack of hiccups.

Century Dictionary and Cyclopedia

1. n. A quick, involuntary, inspiratory movement of the diaphragm brought suddenly to a stop by an involuntary closing of the glottis; the affection of having such spasms: in the latter sense generally in the plural: as, to have the hiccups.
2. To be affected with the hiccups; make the sound of a hiccup.
3. To say, pronounce, or call out with an utterance interrupted by hiccups, as one who is intoxicated.

Wiktionary

1. n. A spasm of the diaphragm, or the resulting sound.
2. n. A minor setback.
3. v. To have the hiccups.

WordNet 3.0

1. n. (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion
2. v. breathe spasmodically, and make a sound