1. A person sent into an enemy's camp to watch and report what is going on; one set to watch or one who watches the conduct of others.

2. To see; to discover at a distance or in a state of concealment; to examine secretly; to explore.

3. To search narrowly; to scrutinize.

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

• simpy,
• spoy,
• spazy,
• srpay,
• spo,
• skpe,
• sxy,
• gyspy,
• speny,
• stepy,
• spr,
• sayz,
• pscy,
• sopey,
• siply,
• spe,
• apy,
• avy,
• suppy,
• jpy

• HSP104,
• Seapoy,
• Zeba,
• SPPA,
• CEB,
• HSEAP,
• CYB,
• CZPB,
• SAAB,
• swab,
• Zobo,
• Supe,
• CYP51,
• HSP-70,
• Swape,
• Soubah,
• DBL-CIP,
• CYP1A2,
• swob,
• AM/SSB,
• HSP-S,
• sebe,
• PSP/ESV,
• HSP108,
• SBA,
• HSP70H,
• PSB,
• Spaw,
• CEPA,
• SAIB,
• CYB5,
• SCEP,
• SAIPA,
• SWB,
• HSP90,
• SIBB,
• SOPP,
• FGF-SAP,
• PHY/SUP,
• CEBE(S),
• sop,
• SSB,
• SOBA,
• sepia,
• SEB,
• ZIB,
• HSP40,
• SCIP,
• CYP4A1,
• CIP/HIP,
• SIBI,
• ZBY,
• 280CEBA,
• PSPP,
• zap,
• CIPB,
• ZBB,
• sap,
• CYP27,
• Spae,
• CYPBU,
• CYP2A13,
• Seppi,
• seep,
• Seepy,
• HSP-72,
• psyop,
• Sope,
• WSP,
• CYP1A,
• cebu,
• CYP17,
• sappy,
• spay,
• CYP3A7,
• SAAAPA,
• CEWP,
• SPE/SPI,
• scipio,
• CEPOO,
• SEO/SEP,
• CO-CIP,
• SWEP,
• SBWEI,
• CYP-450,
• soup,
• SAPA,
• WJSP,
• PSIP,
• SEOP,
• SPOH,
• CYP2E1,
• WZIB,
• sub,
• CEP,
• SABE,
• WSB,
• CYP7,
• SCEPE,
• CIPII,
• HIP/CIP,
• SBB,
• Cippi,
• WSOP,
• swbw,
• SAPI,
• Sabha,
• AA/SBI,
• T-SAP,
• SCIB,
• ZPP,
• SIPO,
• SPE,
• HSBOW,
• Sebo,
• sspe,
• CIBO,
• swop,
• SIPA,
• CYP2A5,
• SPIE,
• DNA-SSB,
• CIBI,
• SWAPO,
• sup,
• Sipy,
• HSP-27,
• CYP3A,
• SABI,
• SSAB,
• SPEE,
• soppy,
• Sepiae,
• SCIP-R,
• CEBA,
• CEPE,
• SIPP,
• SIB-IC,
• SEBW,
• PE/SUB,
• CYP4A,
• zep,
• zip,
• CIIHB,
• SPP,
• SIHP,
• WSPA,
• saba,
• SABEA,
• SPAA,
• HCYPA,
• SAP/SAR,
• WZIP,
• SP54,
• CG/SBA,
• HD-ZIP,
• CYP19,
• SAP90,
• SPI,
• WSPU,
• sabah,
• SEAHP,
• CZPO,
• CEOP,
• SEIP,
• XOB,
• SAP102,
• CIAPY,
• SEPA,
• HSP32,
• SPOE,
• FC-SB3,
• SIBO,
• HY-SIB,
• SEAP,
• CYPIIE1,
• SAP/TCA,
• Sweepy,
• CYWW2BY,
• CZHP,
• SBI,
• SSP,
• CZPP,
• SBEUA,
• sbw,
• CYP7A1,
• SBU,
• ceibo,
• Zubah,
• PSIEP,
• PSIPU,
• sep,
• ZAPU,
• SAPE,
• spue,
• HSP10,
• subway,
• CYOP,
• FP-SEP,
• HSP72,
• SUPP,
• CIPA,
• CYP,
• SAEB,
• HSP70-2,
• ceiba,
• SIPI,
• SOPA,
• CYP40,
• sappho,
• SYP,
• CYBI,
• CYP3A4,
• HSP-A,
• HSAAP,
• ZOB,
• Saibh,
• CIPE,
• SAPO,
• SBYI,
• Sepp,
• CYP450,
• SEPE,
• swipe,
• soupy,
• CIB,
• CZPY,
• CZBB,
• CYP2A6,
• SPO,
• SPB,
• spa,
• swap,
• ZPA,
• HSPA,
• SBUY,
• SAB,
• SEBA,
• HSP25,
• SI/SIB,
• SBI-BUS,
• SJP,
• ZAB,
• Sepoy,
• sip,
• SABIO,
• CIP,
• SEEB,
• SAPP,
• RBA/ZBA,
• SPU,
• SEABEE,
• SOAPIER,
• PSP,
• soapy,
• HSP60,
• SIOP,
• XWB,
• SBO,
• Zuba,
• SAAAB,
• Zeb,
• CYP-40,
• AT-SPI,
• SPW,
• swoop,
• HSAB,
• CYP1A1,
• CEOB,
• SIEPO,
• SEBI,
• HSP-32,
• zebu,
• HF-SSB,
• HSB,
• HZP3,
• SBH,
• zeppo,
• HCYP17,
• HSP70,
• CEB6,
• Zope,
• SWEB,
• HSUPA,
• SOBE,
• PSAPI,
• NR-SOB,
• SAPWW,
• HSP-60,
• Sipe,
• SOBO,
• S640P,
• HSP-90,
• HSSHP,
• Swaip,
• sib,
• ZAPP,
• SEOB,
• WWSP,
• CYP-A,
• AD-HSP,
• SP3,
• CYP1,
• SAP&DC,
• MT-SP1,
• soap,
• zippy,
• SABB,
• CIPO,
• SIAB,
• CIBA,
• Spewy,
• SABO,
• sbe,
• SAP-2,
• CYP7A,
• sweep,
• HSP-65,
• CYP-D,
• Syb,
• CSF-SPE,
• CYP11A1,
• HSP,
• SBAA,
• spew.

The adverb for the word "spy" is "spyingly".

The adjective form of the word "spy" is "spying".

The plural of the "spy" can be the "spies".

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