second officer From WikiWord Entry Discussion Read Edit View history Contents EnglishPronunciationNounRelated termsReferences English Pronunciation No pronunciation has been added yet. Nounsecond officer nounThe flight engineer of an aircraft. Related termsSynonymsfirst officerthird officerflying officerofficerunderofficerflight lieutenantline officerexecutive officersubofficeraircrewmanflight crewcabin crewmatepilot officerchief matestaff officer References Wiktionary — second officer Wikipedia — second officer