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
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: thaliacea: small class of free-swimming tunicates; sometimes classified as an order
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: dodo: someone whose style is out of fashion
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: auspices: kindly endorsement and guidance
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: field game: an outdoor game played on a field of specified dimensions
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: retainer: a fee charged in advance to retain the services of someone
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: endorphin: a neurochemical occurring naturally in the brain and having analgesic properties
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: money: the official currency issued by a government or national bank
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: western: a film about life in the western United States during the period of exploration and development
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: transportation system: a facility consisting of the means and equipment necessary for the movement of passengers or goods
Broader: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) | Unrelated: north equatorial current: an equatorial current that flows west across the Pacific just north of the equator