Index - W
| waitAny | Interlude |
| waitAnyCancel | Interlude |
| waitAnyCatch | Interlude |
| waitAnyCatchCancel | Interlude |
| waitBoth | Interlude |
| waitCatch | Interlude |
| waitEither | Interlude |
| waitEitherCancel | Interlude |
| waitEitherCatch | Interlude |
| waitEitherCatchCancel | Interlude |
| waitEither_ | Interlude |
| waitQSem | Interlude |
| waitQSemN | Interlude |
| weighted | Interlude |
| weightedMay | Interlude |
| when | Interlude |
| whenM | Interlude |
| withAsync | Interlude |
| withAsyncBound | Interlude |
| withAsyncOn | Interlude |
| wither | Interlude |
| Witherable | Interlude |
| witherM | Interlude |
| witherOf | Interlude |
| withExcept | Interlude |
| withExceptT | Interlude |
| withFile | Interlude |
| withFrozenCallStack | Interlude |
| withMVar | Interlude |
| withMVarMasked | Interlude |
| withRand | Interlude |
| withRandT | Interlude |
| withState | Interlude |
| witness | Interlude |
| Word | Interlude |
| Word16 | Interlude |
| Word32 | Interlude |
| Word64 | Interlude |
| Word8 | Interlude |
| WordPtr | Interlude |
| WrappedMonoid | Interlude |
| writeChan | Interlude |
| writeFile | Interlude |
| writeList2Chan | Interlude |
| WriteMode | Interlude |