ISARITHM Scrabble 13 Words With Friends 13 Scrabble letter values: I1S1A1R1I1T1H4M3 = 13 Definition noun a line drawn on a map connecting points having the same numerical value of some variable. — synonyms: isogram, isopleth See all 153 words you can make from ISARITHM → 8-letter words Words starting with I Words ending with M ← Unscramble different letters