1. To make full; SYN. fill up, make full.
2. To become full; SYN. fill up.
3. To appoint someone to (a position or a job).
4. To assume, as of positions or roles; SYN. take.
5. To plug with a substance.
To supply with information on a specific topic.
1. To extend or enlarge to the desired limit.
2. To make complete; to enter the required information,
3. To extend or enlarge to the desired limit; to make complete; as, to fill out a bill.