1. to make something full by putting something into it
2. to become full
3. to occupy a position or role

1. an amount that fills something completely
2. material used to fill a space or container

Examples

• Please fill the water bottle before we leave.
• The theater began to fill with excited audience members.
• She will fill the position of marketing director next month.
• This snack should fill you up until dinner.
• He drank his fill of water after the long hike.
• The construction crew used gravel as fill for the foundation.
• Fill out this form with your personal information.
• The smell of fresh bread filled the kitchen.