Establish after a calculation, investigation, experiment, survey, or study.

synonyms: determine, find, find out.

Roget 150: be firm etc. adj.; stick fast; stand firm, keep firm, remain firm; weather the storm, stay the course, stick to the course, keep the faith, don't give in, don't buckle under.    settle, establish, stablish^†, ascertain, fix, set, stabilitate^†; retain, keep hold; make good, make sure; fasten etc. (join) 43; set on its legs, float; perpetuate.    settle down; strike roots, put down roots, take root; take up one's abode etc. 184; build one's house on a rock.    ... show more

Roget 480: judge, conclude; come to a conclusion, draw a conclusion, arrive at a conclusion; ascertain, determine, make up one's mind.    deduce, derive, gather, collect, draw an inference, make a deduction, weet^†, ween^†.    form an estimate, estimate, appreciate, value, count, assess, rate, rank, account; regard, consider, think of; look upon etc. (believe) 484; review; size up [Slang].    settle; pass an opinion, give an opinion; decide, try, pronounce, rule; pass judgment, pass sentence; sentence, doom; find; give judgment, deliver judgment; adjudge, adjudicate; arbitrate, award, report; bring in a verdict; make absolute, set a question at rest; confirm etc. (assent) 488.    comment, criticize, kibitz; pass under review etc. (examine) 457; investigate etc. (inquire) 461.    hold the scales, sit in judgment; try judgment, hear a cause.    ... show more

Be careful or certain to do something; make certain of something.

synonyms: assure, check, control, ensure, insure, see, see to it.

Dutch: verzekeren

Find out, learn, or determine with certainty, usually by making an inquiry or other effort.

synonyms: check, determine, find out, learn, see, watch.

Dutch: leren, constateren

Learn or discover with certainty.

Dutch: constateren, vaststellen