hiccup

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun 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.
• noun An attack of these spasms. Often used with the.
• noun The sound made by such a spasm or a sound resembling it.
• intransitive verb To make a hiccup or a sound like a hiccup.
• intransitive verb To have an attack of hiccups.

from The Century Dictionary.

• noun 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.
• To be affected with the hiccups; make the sound of a hiccup.
• To say, pronounce, or call out with an utterance interrupted by hiccups, as one who is intoxicated.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A spasm of the diaphragm, or the resulting sound.
• noun A minor setback.
• verb To have the hiccups.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun (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
• verb breathe spasmodically, and make a sound