Index - I
| Id | MOO.Types |
| If | MOO.AST |
| importDatabase | MOO.Server |
| In | MOO.AST |
| Index | MOO.AST |
| index | MOO.String |
| indexLength | MOO.Task |
| initDatabase | MOO.Database |
| initEnvironment | MOO.Task |
| initFrame | MOO.Task |
| initialPlayer | MOO.Task |
| initialThis | MOO.Task |
| initObject | MOO.Object |
| initProperty | MOO.Object |
| initState | MOO.Task |
| initTask | MOO.Task |
| initVerb | MOO.Verb |
| insert | MOO.List |
| Int | MOO.Types |
| intercalate | MOO.String |
| interrupt | MOO.Task |
| interruptHandler | MOO.Task |
| IntT | MOO.Types |
| intValue | MOO.Types |
| isBuiltinProperty | MOO.Object |
| isLValue | MOO.AST |
| isPrefixOf | MOO.String |
| isQueued | MOO.Task |
| isWizard | MOO.Task |