Jane filled out an application.
Fill in this application form and send it at once.
All you have to do is fill in this form.
I need to send something to Jane.
the act of filling in the necessary items in an account book
Jane was about to leave the house.
Jane wrote the letter herself.
write all the required information onto a form
Please fill out this questionnaire and send it to us.
Jane is familiar with the Japanese language.