The letters in SOURCES make 114 words of two letters or more. The longest is COURSES at 7 letters, and the highest-scoring is COURSES at 9 points.
SOURCES is an anagram of COURSES and SUCROSE, using all 7 letters. SOURCES has 7 letters: 3 vowels and 4 consonants, worth 9 points before any board bonuses.
Anagrams of SOURCES 2
courses9sucrose9
7-letter words 3
6-letter words 15
5-letter words 26
ceros7cores7corse7coses7cress7cross7cruse7cures7curse7cusso7ecrus7euros5oecus7roses5roues5rouse5ruses5score7scour7sores5sorus5sours5souse5sucre7suers5users5
4-letter words 34
cero6cess6core6coss6crus6cues6cure6curs6cuss6ecru6ecus6eros4euro4orcs6ores4oses4ours4recs6rocs6roes4rose4roue4rues4ruse4secs6sers4sore4sour4sous4suer4sues4sure4user4uses4
3-letter words 25
cor5cos5cru5cue5cur5ecu5ers3ess3oes3orc5ore3ors3ose3our3rec5res3roc5roe3rue3sec5ser3sos3sou3sue3use3
2-letter words 11
cs4er2es2oe2or2os2re2rs2so2ss2us2
Words are from our open word list and include some game-only words. Rude words are left out of this page; the unscrambler shows every valid word, lets you add blank tiles and filter by length.