SPECULATING
Scrabble letter values: S1P3E1C3U1L1A1T1I1N1G2 = 16
Definition
SPECULATING is the present participle of SPECULATE.
verb SPECULATE: to believe especially on uncertain or tentative grounds.
Synonyms of SPECULATE: theorize, theorise, conjecture, hypothesize, hypothesise, hypothecate, suppose