chew over
think over
meditate
ponder *
excogitate
contemplate **
muse *
reflect ****
mull
mull over
ruminate
speculate **

He'd had nothing but time to think over the last weeks.

He had not started to think back over the experience.

I thought over the 90 minutes we were the better team.

She'd been doing a great deal of thinking over the past few days.

I should like to think over the matter a little now.

He's someone whose work has really made her stop and think over the years.

Haven't we thought every little thing over 100 or 1000 times?

I think over all we'll be in line with last year.

At least the drive gave me time to think over my current situation.

A. I think over the next three to five years.