thinking, thought, view...

reference, consultation

reference, consultation

note (for reference), remarks, N.B.

to think (about, of), to think over...

consideration, taking into account

thought, consideration, thinking

reference book, study-aid book, supplemental textbook...

way of thinking

selection, choice, screening

archaeology, archeology

consideration, inquiry, enquiry...

investigation into historical evidence, study of historical artifacts

reconsideration

examination, consideration, test...

to reconsider, to rethink, to reassess

to reconsider, to rethink, to reassess

to ponder, to brood

thought, report on one's investigation into ..., deceased father

if you think about it, come to think of it

plan, device, idea...

plan, device, idea...

to ponder, to brood

if you think about it, come to think of it

study (of), discussion, discourse...

to think out, to devise, to invent...

to think out, to devise, to invent...

evaluation, rating

investigation, inquiry, research...

consideration, deliberation