#1 fill out v. write all the required information onto a form; "fill out this questionnaire, please!"; "make out a form". wn #2 fill out v. make bigger or better or more complete. wn #3 fill out v. supplement what is thought to be deficient; "He eked out his meager pay by giving private lessons"; "Braque eked out his collages with charcoal". wn #4 fill out v. line or stuff with soft material; "pad a bra". wn #5 fill out v. make fat or plump; "We will plump out that poor starving child". wn