1. Cause (space or container) to become full or almost full.
2. Appoint a person to hold (a vacant post).
3. Occupy or take up (a period of time).
4. An amount of something which is as much as one wants or can bear.
5. An amount of something which will occupy all the space in a container.
Plural noun: Fills.
Verb forms: Fill, Filled, Filled
Fill the bucket with water.