To opine, think, reckon.
To have religious faith; to believe in a greater truth.
To accept as true, particularly without absolute certainty (i.e., as opposed to knowing).
To accept that someone is telling the truth.
To strive, or to make efforts, with a twisting, or with contortions of the body.
To strive, to labour in difficulty, to fight (for or against), to contend.
A contortion of the body in an attempt to escape or to perform a difficult task.
Strife, contention, great effort.