Do you fill in a form, or fill out a form?

Woodie said:

Do you fill in a form, or fill out a form?

I avoid them.

Woodie said:

Do you fill in a form, or fill out a form?

Depends on the context. I’m so out of form that I’ve well-and-truly filled out.

Woodie said:

Do you fill in a form, or fill out a form?

I fill up a form.

I fillet a form.

I work from top to bottom.

I fill down.

In all srsns though, I would normally say “fill out a form”, but for instance “fill in your name”.

Woodie said:

Do you fill in a form, or fill out a form?

Let’s see if Googlifight can answer this question.
http://www.googlefight.com/
http://www.googlefight.com/fill+in+a+form-vs-fill+out+a+form.php

200 hits for “fill out a form”
78 hits for “fill in a form”
There’s a clear winner.
Very similar results for “fill out the form” vs “fill in the form”.

I fill in a form. Always have. I associate “fill out a form” with American English.

buffy said:

I fill in a form. Always have. I associate “fill out a form” with American English.

Complete a form?

I have been known to filet a forum.