- (v.t.) To bring to a specified state by coughing; as, he coughed himself hoarse.
- (v.t.) To expel from the lungs or air passages by coughing; -- followed by up; as, to cough up phlegm.
- (v.i.) The more or less frequent repetition of coughing, constituting a symptom of disease.
- (v.i.) To expel air or obstructing or irritating matter, from the lungs or air passages, in a noisy and violent manner.
- (v.i.) A sudden, noisy, and violent expulsion of air from the chest, caused by irritation in the air passages or by the reflex action of nervous or gastric disorder, etc.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). cough. Retrieved September 24, 2026, from http://smartdefine.org/cough/definitions/1992147 |
| Chicago | Webster's. 2011. "cough" http://smartdefine.org/cough/definitions/1992147 (accessed September 24, 2026). |
| Harvard | Webster's 2011, cough, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/cough/definitions/1992147>. |
| MLA | Webster's. "cough" 27 May 2011. Web. 24 September 2026. <http://smartdefine.org/cough/definitions/1992147> |