| IBLO | Keyword | 
| IBLOC | Keyword | 
| IBLOCK | Keyword | 
| ICAS | Function | 
| ICASE | Function | 
| ICON | Keyword | Property | 
| ID | Keyword | Function | 
| IDXC | Function | 
| IDXCO | Function | 
| IDXCOL | Function | 
| IDXCOLL | Function | 
| IDXCOLLA | Function | 
| IDXCOLLAT | Function | 
| IDXCOLLATE | Function | 
| IF | Keyword | 
| IFDE | Keyword | 
| IFDEF | Keyword | 
| IFND | Keyword | 
| IFNDE | Keyword | 
| IFNDEF | Keyword | 
| IIF | Function | 
| IMAGE | Keyword | 
| IMEMODE | Property | 
| IMES | Function | 
| IMEST | Function | 
| IMESTA | Function | 
| IMESTAT | Function | 
| IMESTATU | Function | 
| IMESTATUS | Function | 
| IMPL | Keyword | 
| IMPLE | Keyword | 
| IMPLEM | Keyword | 
| IMPLEME | Keyword | 
| IMPLEMEN | Keyword | 
| IMPLEMENT | Keyword | 
| IMPLEMENTS | Keyword | 
| IMPO | Keyword | 
| IMPOR | Keyword | 
| IMPORT | Keyword | 
| IN | Keyword | 
| INCL | Keyword | 
| INCLU | Keyword | 
| INCLUD | Keyword | 
| INCLUDE | Keyword | 
| INCLUDEPAGEINOUTPUT | Method | 
| INCREMENT | Property | 
| INCREMENTALSEARCH | Property | 
| INDB | Function | 
| INDBC | Function | 
| INDEX | Keyword | Function | 
| INDEXE | Keyword | 
| INDEXES | Keyword | 
| INDEXS | Function | 
| INDEXSE | Function | 
| INDEXSEE | Function | 
| INDEXSEEK | Function | 
| INDEXTOITEMID | Property | 
| INFO | Keyword | 
| INFOR | Keyword | 
| INFORM | Keyword | 
| INFORMA | Keyword | 
| INFORMAT | Keyword | 
| INFORMATI | Keyword | 
| INFORMATIO | Keyword | 
| INFORMATION | Keyword | 
| INIT | Event | 
| INITIALSELECTEDALIAS | Property | 
| INKE | Function | 
| INKEY | Function | 
| INLI | Function | 
| INLIS | Function | 
| INLIST | Function | 
| INNE | Keyword | 
| INNER | Keyword | 
| INPUT | Keyword | Function | 
| INPUTB | Function | 
| INPUTBO | Function | 
| INPUTBOX | Function | 
| INPUTMASK | Property | 
| INS | Keyword | 
| INSE | Keyword | 
| INSER | Keyword | 
| INSERT | Keyword | 
| INSERTCMD | Property | 
| INSERTCMDDATASOURCE | Property | 
| INSERTCMDDATASOURCETYPE | Property | 
| INSERTCMDREFRESHCMD | Property | 
| INSERTCMDREFRESHFIELDLIST | Property | 
| INSERTCMDREFRESHKEYFIELDLIST | Property | 
| INSM | Function | 
| INSMO | Function | 
| INSMOD | Function | 
| INSMODE | Function | 
| INST | Keyword | 
| INSTR | Keyword | 
| INSTRU | Keyword | 
| INSTRUC | Keyword | 
| INSTRUCT | Keyword | 
| INT | Keyword | Function | 
| INTE | Keyword | 
| INTEG | Keyword | 
| INTEGE | Keyword | 
| INTEGER | Keyword | 
| INTEGRALHEIGHT | Property | 
| INTEN | Keyword | 
| INTENS | Keyword | 
| INTENSI | Keyword | 
| INTENSIT | Keyword | 
| INTENSITY | Keyword | 
| INTERACTIVECHANGE | Event | 
| INTERVAL | Property | 
| INTO | Keyword | 
| IS | Keyword | 
| ISAL | Function | 
| ISALP | Function | 
| ISALPH | Function | 
| ISALPHA | Function | 
| ISATTRIBUTE | Property | 
| ISBASE64 | Property | 
| ISBINARY | Property | 
| ISBL | Function | 
| ISBLA | Function | 
| ISBLAN | Function | 
| ISBLANK | Function | 
| ISCO | Function | 
| ISCOL | Function | 
| ISCOLO | Function | 
| ISCOLOR | Function | 
| ISDI | Function | 
| ISDIFFGRAM | Property | 
| ISDIG | Function | 
| ISDIGI | Function | 
| ISDIGIT | Function | 
| ISEX | Function | 
| ISEXCL | Function | 
| ISEXCLU | Function | 
| ISEXCLUS | Function | 
| ISEXCLUSI | Function | 
| ISEXCLUSIV | Function | 
| ISEXCLUSIVE | Function | 
| ISFL | Function | 
| ISFLOC | Function | 
| ISFLOCK | Function | 
| ISFLOCKE | Function | 
| ISFLOCKED | Function | 
| ISHO | Function | 
| ISHOS | Function | 
| ISHOST | Function | 
| ISHOSTE | Function | 
| ISHOSTED | Function | 
| ISLE | Function | 
| ISLEA | Function | 
| ISLEAD | Function | 
| ISLEADB | Function | 
| ISLEADBY | Function | 
| ISLEADBYT | Function | 
| ISLEADBYTE | Function | 
| ISLO | Function | 
| ISLOADED | Property | 
| ISLOW | Function | 
| ISLOWE | Function | 
| ISLOWER | Function | 
| ISMA | Function | 
| ISMAR | Function | 
| ISMARK | Function | 
| ISMARKE | Function | 
| ISMARKED | Function | 
| ISME | Function | 
| ISMEM | Function | 
| ISMEMO | Function | 
| ISMEMOF | Function | 
| ISMEMOFE | Function | 
| ISMEMOFET | Function | 
| ISMEMOFETC | Function | 
| ISMEMOFETCH | Function | 
| ISMEMOFETCHE | Function | 
| ISMEMOFETCHED | Function | 
| ISMO | Function | 
| ISMOU | Function | 
| ISMOUS | Function | 
| ISMOUSE | Function | 
| ISNU | Function | 
| ISNUL | Function | 
| ISNULL | Function | 
| ISOM | Keyword | 
| ISOME | Keyword | 
| ISOMET | Keyword | 
| ISOMETR | Keyword | 
| ISOMETRI | Keyword | 
| ISOMETRIC | Keyword | 
| ISPE | Function | 
| ISPEN | Function | 
| ISRE | Function | 
| ISREAD | Function | 
| ISREADO | Function | 
| ISREADON | Function | 
| ISREADONL | Function | 
| ISREADONLY | Function | 
| ISRL | Function | 
| ISRLO | Function | 
| ISRLOC | Function | 
| ISRLOCK | Function | 
| ISRLOCKE | Function | 
| ISRLOCKED | Function | 
| ISTR | Function | 
| ISTRA | Function | 
| ISTRAN | Function | 
| ISTRANS | Function | 
| ISTRANSA | Function | 
| ISTRANSAC | Function | 
| ISTRANSACT | Function | 
| ISTRANSACTA | Function | 
| ISTRANSACTAB | Function | 
| ISTRANSACTABL | Function | 
| ISTRANSACTABLE | Function | 
| ISUP | Function | 
| ISUPP | Function | 
| ISUPPE | Function | 
| ISUPPER | Function | 
| ITAL | Keyword | 
| ITALI | Keyword | 
| ITALIA | Keyword | 
| ITALIAN | Keyword | 
| ITEM | Method | 
| ITEMBACKCOLOR | Property | 
| ITEMDATA | Property | 
| ITEMFORECOLOR | Property | 
| ITEMIDDATA | Property | 
| ITEMIDTOINDEX | Method | 
| ITEMTIPS | Property | 
| ITSE | Keyword | 
| ITSEX | Keyword | 
| ITSEXP | Keyword | 
| ITSEXPR | Keyword | 
| ITSEXPRE | Keyword | 
| ITSEXPRES | Keyword | 
| ITSEXPRESS | Keyword | 
| ITSEXPRESSI | Keyword | 
| ITSEXPRESSIO | Keyword | 
| ITSEXPRESSION | Keyword | 
| IXMLDOMELEMENT | Property |