speculate
v 1: to believe especially on uncertain or tentative grounds:
"Scientists supposed that large dinosaurs lived in
swamps." [syn: {theorize}, {theorise}, {conjecture}, {hypothesize},
{hypothecate}, {suppose}]
2: indulge in speculations
3: think about at length and in depth; "I mulled over the
events of the afternoon" [syn: {chew over}, {think over},
{meditate}, {ponder}, {contemplate}, {muse}, {reflect}, {mull},
{mull over}, {ruminate}]
4: invest at a risk [syn: {job}]