What Does Filler out Mean?

verb (adverb) to make or become fuller, thicker, or rounderher figure has filled out since her marriage. to make more substantialthe writers were asked to fill their stories out.

What does it mean when someone is filling out?

Definition of 'fill out'

If someone or something fills out, they become fuller, thicker, or rounder. A girl may fill out before she reaches her full height.

Is it fill out or filled out?

The appropriate expression to use with a form is “fill in” or “fill out” (even though “in” and “out” are opposites, “fill in” and “fill out” both have the same meaning). So please don't ask anyone to “fill up a form” because they will not be able to do it. Ask them to “fill in” a form or “fill out” a form.