1. That may flow, like water or air; liquid or gaseous.

2. A substance whose particles readily move and change their relative position.

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

• fooid,
• flid,
• flowd,
• fload,
• flead,
• fludis,
• fluch,
• fobid,
• fllod,
• figid,
• floid,
• flude,
• flacid,
• fluride,
• flushd,
• fluuid,
• flind,
• flawd,
• fluite,
• flued

• Filed,
• Demi-volt,
• flied,
• flighty,
• Flowed,
• Flote,
• Phyllodia,
• fallout,
• floaty,
• foiled,
• Fluate,
• fold-out,
• felled,
• -fold,
• Flauto,
• fieldday,
• failed,
• Phyllida,
• Velate,
• FILTE,
• flood,
• Philette,
• flue,
• FOLTA,
• flit,
• nail-fold,
• faultier,
• FLD.PCT,
• volt,
• veldt,
• filiate,
• Fallowed,
• fold,
• Valeta,
• laid,
• Phyllite,
• Fillida,
• Fleta,
• violet,
• fluitt,
• Felita,
• Floyd,
• FLAD,
• folate,
• valuate,
• Valda,
• Volte,
• flightier,
• fuelled,
• Flete,
• veiled,
• Volutae,
• Vilayet,
• flu,
• Flyte,
• six-fold,
• phalloid,
• VLD,
• Vyolet,
• flawed,
• G/VLLD,
• HI-VOLT,
• vault,
• Home-felt,
• FLOT,
• Valida,
• flat-pack,
• Fieldy,
• Phyllody,
• two-fold,
• Vlad,
• Vaulty,
• valetta,
• Vyolette,
• FILDA,
• Violette,
• lid,
• Philauty,
• VALAD,
• Pholad,
• fault,
• felidae,
• Phillyda,
• Vellda,
• valletta,
• Filiety,
• FLOD,
• Volleyed,
• Velda,
• fillet,
• FLYT,
• FALD,
• fauld,
• Valeda,
• Villette,
• Phillida,
• foldaway,
• FLTE,
• Field-bed,
• flat-hat,
• Viollet,
• volta,
• Vyoletta,
• faulty,
• Flet,
• E-FIELD,
• flight,
• five-fold,
• felid,
• felt,
• phyllidae,
• VHLT,
• Violletta,
• Fooled,
• Flitty,
• Fowled,
• Flewed,
• Voluta,
• foliate,
• flout,
• Voweled,
• pholidae,
• VOLT-A,
• FLUDA,
• feud,
• fueled,
• FLT,
• Viollette,
• floodway,
• FLD,
• Fulled,
• flat,
• velleity,
• FALT,
• pholiota,
• FLT/WS,
• Volti,
• field,
• FLT-3L,
• JET-FLEET,
• Flota,
• FLOAD,
• Violetta,
• Phialed,
• fludd,
• fleet,
• VLDY,
• Valette,
• phyllode,
• VLT,
• Fluty,
• float,
• veld,
• violate,
• Fyllot,
• flyweight,
• fellate,
• fouled,
• four-fold,
• VLT-AT,
• Vialled,
• Phylloid,
• Fayalite,
• VOLATY,
• Fled,
• E-FLT,
• VLTAA,
• flirt,
• Flayed,
• FLDY,
• HVLT-R,
• valued,
• Followed,
• fallot,
• FLT/HDWE,
• ten-fold,
• Viled,
• filet,
• FLT3-L,
• nine-fold,
• Vallda,
• Fellata,
• valet,
• flute,
• Vialed,
• FLDOE,
• VLT-UT,
• Vellet,
• Flite,
• Volodya,
• Vild,
• PP-FOLD,
• WFLD,
• VOLD,
• Vility,
• phillidae,
• veloute,
• FWLTW,
• volute,
• Violeta,
• fealty,
• valid,
• Floyte,
• foaled,
• Falito,
• flat-top,
• filled.

The adverb form of the word "fluid" is "fluidly".

The adjective form of the word "fluid" is "fluidic".

The plural of the "fluid" can be the "fluids".

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