[noun] an approximate calculation of quantity or degree or worth; "an estimate of what it would cost"; "a rough idea how long it would take" Synonyms:estimate, estimation, idea
[noun] the quality of coming near to identity (especially close in quantity)
[noun] an imprecise or incomplete account; "newspapers gave only an approximation of the actual events"
[noun] the act of bringing near or bringing together especially the cut edges of tissue Synonyms:bringing close together