1. One who sails or floats in the air, as in a balloon.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• zeronaut,
• seronaut,
• weronaut,
• qeronaut,
• awronaut,
• asronaut,
• adronaut,
• arronaut,
• a4ronaut,
• a3ronaut,
• aeeonaut,
• aedonaut,
• aefonaut,
• aetonaut,
• ae5onaut,
• ae4onaut,
• aerinaut,
• aerknaut,
• aerlnaut,
• aerpnaut

• ring-around-the-rosy,
• Arnit,
• arionidae,
• irenidae,
• around,
• Yarnut,
• ironhead,
• walking-around,
• knight-errant,
• un-warned,
• ARRENT,
• Arraigned,
• Arnat,
• Arnoud,
• Arnita,
• Arnd,
• Ornid,
• yearned-for,
• fore-warned,
• Aroint,
• un-ironed,
• erenhot,
• Aaronite,
• AERONIETO,
• arnedo,
• Arand,
• AIRNAT,
• arent,
• Arnaout,
• death-warrant,
• Arnot,
• earned-income,
• arionoidea,
• Ornetta,
• escape-warrant,
• Yernut,
• Euronet-DIANE,
• araneda,
• dis-orient,
• urundi,
• earnt,
• orent,
• arrhenoid,
• errand,
• around-the-world,
• ironweed,
• in-errant,
• Araneidae,
• aurand,
• Arendt,
• araneida,
• arrondi,
• urned,
• euronat,
• errant,
• arundo,
• ornate,
• un-earned,
• Arnout,
• araneid,
• Arrondee,
• wiranto,
• orient,
• aeronautic,
• Orrnett,
• shoot-around,
• EARNET,
• errante,
• Arnatto,
• iranite,
• airwound,
• warranto,
• arenite,
• year-around,
• weren't,
• ironwood,
• Aroynt,
• arunta,
• go-around,
• ironed,
• warrant,
• Re-orient,
• wornout,
• wrap-around,
• arhant,
• ernietta,
• Whereinto,
• ahronot,
• earned-run,
• fugie-warrant,
• warrantee,
• yearround,
• Erinite,
• irianto,
• Orinda,
• Ornette,
• Arnett,
• whereunto,
• earnout,
• wornat,
• well-earned,
• ornata,
• arrant,
• ruanda-urundi,
• AIRINDIA,
• Knights-errant,
• uranidea,
• warranty,
• Arnetta,
• werent,
• dial-around,
• rub-urinate,
• Arend,
• all-around,
• ARNT,
• Uranate,
• Arnut,
• BAILIFF-ERRANT,
• walk-around,
• work-around,
• Yearned,
• WARRANT,,
• irwandi,
• AERONET,
• aranda,
• around-the-clock,
• earned,
• end-around,
• d\'orient,
• erento,
• ring-around-a-rosy,
• Uranite,
• erandio,
• Arnette,
• hard-earned,
• yearend,
• run-around,
• IRINT,
• Ornett,
• Arnaud,
• WARRANTEE.,
• d\'arnaud,
• uraniidae,
• Aeronat,
• Arnott,
• urinate,
• orneta,
• Arnaut,
• Arndt,
• ornda,
• ironhide,
• Arnotto,
• aryanto,
• warnowiid,
• search-warrant,
• Ornet,
• Araneoidea,
• Warned,
• erent,
• orenda,
• aeronautics,
• oronde,
• IRANET,
• Erinit,
• aerinite,
• yarnweight,
• Euronet,
• aren't,
• Arnet,
• turn-around,
• araneta,
• aronde,
• oranit,
• oriente,
• WARRANTY,,
• erionite,
• re-warned.

The adjective form of the word "aeronaut" is "aeronautical".

The plural of the "aeronaut" can be the "aeronauts".

The singular of the "aeronaut" can be the "aeronaut".