Crossword clues for Superior officer. 8 letters:HIGHERUPSuperior officer.SALUTEAcknowledge a superior officerSANDWICHISLANDSDiscovery named for James Cook's superior officerSIRAddress for a superior officerSIRWhat to call a superior officerFRAGAssault with a grenade, as a superior officerFRAGAssault a superior officerFRAGKill, as one's superior officerENSWarrant officer's superior: Abbr.ENSIGNPetty officer's superiorENSChief warrant officer's superior: Abbr.ENSSuperior to a chief warrant officer: Abbr.