Term: four-stroke engine: an internal-combustion engine in which an explosive mixture is drawn into the cylinder on the first stroke and is compressed and ignited on the second stroke; work is done on the third stroke and the products of combustion are exhausted on the fourth stroke
Candidate hypernym: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) → 1
Candidate hypernym: thaliacea: small class of free-swimming tunicates; sometimes classified as an order → 0
Candidate hypernym: dodo: someone whose style is out of fashion → 0
Candidate hypernym: auspices: kindly endorsement and guidance → 0
Candidate hypernym: field game: an outdoor game played on a field of specified dimensions → 0
Candidate hypernym: retainer: a fee charged in advance to retain the services of someone → 0
Candidate hypernym: endorphin: a neurochemical occurring naturally in the brain and having analgesic properties → 0
Candidate hypernym: money: the official currency issued by a government or national bank → 0
Candidate hypernym: western: a film about life in the western United States during the period of exploration and development → 0
Candidate hypernym: transportation system: a facility consisting of the means and equipment necessary for the movement of passengers or goods → 0
Candidate hypernym: north equatorial current: an equatorial current that flows west across the Pacific just north of the equator → 0