Scool Scrabble Tool
Scool is a tool for finding valid letter combinations for Scrabble. It currently uses the TWL06 wordlist. We'll add other wordlists in the future to complement TWL, such as SOWPODS.
You would benefit by memorizing these:

 

Construct your own queries:

Like:

Use the following placeholders for the like query: % matches any number of characters; _ matches exactly one character, !negates; @ intersects (AND's) the results. The like query is a fast and flexible way to find words matching a pattern.

 

Anagram:

Sub-anagrams are coming... stay tuned!

 

Where:

The where query is more advanced. It lets you define the SQL WHERE clause manually. For example, here's a query that finds all 7-letter words with 'able' somewhere inside them.

Add r to 3-letter words
109 words found.

agar             raga             rink             
ager             rage             rins             
alar             rags             roar             
amir             raid             robe             
aper             rail             rode             
aver             rain             rods             
beer             rais             roes             
boar             rale             roil             
boor             rami             role             
brrr             ramp             roms             
burr             rand             root             
carr             rani             rope             
curr             rant             rose             
deer             rape             rout             
doer             rapt             ruer             
dorr             rare             rump             
dyer             rash             runs             
ever             rasp             ruse             
ewer             rate             ruts             
eyer             rave             ryes             
four             rays             sear             
hoer             rear             seer             
jeer             reds             sour             
lear             reek             spar             
leer             reel             suer             
lier             refs             tear             
moor             reft             tier             
parr             rems             torr             
pear             rend             tyer             
peer             rhos             user             
pier             rice             veer             
poor             rich             vier             
purr             rick             weer             
race             rids             year             
rads             riff             your             
raff             rifs             
raft             rill