effect /ɪˈfɛkt/noun 12verb 1forms 3phrases 2 noun12 •a change or result that something causesThe effect of the hurricane was a devastated landscape. •An influence or causal association between two variables. •Execution; performance; realization; operation.That no compunctious visitings of nature / Shake my fell purpose, nor keep peace between / The effect and it. — 1606 •The state of being binding and enforceable, as in a rule, policy, or law.The new law will come into effect on the first day of next year. •An illusion produced by technical means (as in "special effect")The effect of flying was most convincing. •An alteration, or device for producing an alteration, in sound after it has been produced by an instrument.I use an echo effect here to make the sound more mysterious.I just bought a couple of great effects. •Impression left on the mind; sensation produced.patchwork […] introduced for oratorical effect — 1832 •[usually plural] Belongings, usually as personal effects.The tenant shall pay for the repair of, or replace all such items of the fixtures, fittings, furniture and effects as shall be broken, lost, damaged or destroyed during that time. •A scientific phenomenon, usually named after its discoverer. •Consequence intended; purpose; meaning; general intent; with to.They spake to her to that effect. — 1611 •(no longer used) Reality; actual meaning; fact, as distinguished from mere appearance.no other in effect than what it seems — 1642 •(no longer used) Manifestation; expression; sign.All the large effects / That troop with majesty. — 1603 verb1 •To make or bring about; to implement.The best way to effect change is to work with existing stakeholders.The election has affected our society, for it has effected major changes in the government. formseffected · effecting · effects Phrases with effect or words to that effectused to indicate a paraphrase or the chance of an error in the details of reported speech. snowball effectAn accelerating growth of magnitude, including fame, fortune, importance, or danger.