The letters in COPIES make 63 words of two letters or more. The longest is COPIES at 6 letters, and the highest-scoring is COPIES at 10 points.
No other single word uses all 6 letters of COPIES. COPIES has 6 letters: 3 vowels and 3 consonants, worth 10 points before any board bonuses.
6-letter words 1
5-letter words 9
copes9copse9cosie7epics9pisco9poise7scope9sepic9spice9
4-letter words 19
ceps8cope8cops8epic8epos6ices6opes6pecs8peso6pice8pics8pies6piso6pois6pose6scop8sice6sipe6spec8
3-letter words 22
cep7cis5cop7cos5ice5oes3ope5ops5ose3pec7pes5pic7pie5pis5poe5poi5psi5sec5sei3sic5sip5sop5
2-letter words 12
cs4es2is2oe2oi2op4os2pe4pi4ps4si2so2
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.