ancients

ancients is a valid word in Scrabble and Words With Friends. It has 8 letters and scores 10 points before any board bonuses (a 1 + n 1 + c 3 + i 1 + e 1 + n 1 + t 1 + s 1).

It is an anagram of 2 other words: instance, canniest.

“ANCIENTS” on Wiktionary