v.tr. (also -ise) 1 a give an orderly structure to, systematize. b bring the affairs of (another person or oneself) into order; make arrangements for (a person). 2 a arrange for or initiate (a scheme etc.). b provide; take responsibility for (organized some sandwiches). 3 (often absol.) a enrol (new members) in a trade union, political party, etc. b form (a trade union or other political group). 4 a form (different elements) into an organic whole. b form (an organic whole). 5 (esp. as organized adj.) make organic; make into a living being or tissue. organizable adj. organizer n.
[ ME f. OF organiser f. med.L organizare f. L (as ORGAN) ]