fill
The word carries a strong sense of saturation and completion. It suggests a movement from emptiness to a state of total capacity, whether that is a physical container, a job opening, or an emotional state. There is often a feeling of pressure or density associated with the action, as in filling a room with noise.
In professional or medical contexts, the word shifts from physical volume to the fulfillment of a requirement. Filling a prescription or a quota is not about volume, but about satisfying a specific demand or obligation to ensure a process is complete.
Meanings
To make a space full by adding a substance.
Fill the glass with water.
She was hired to fill the vacancy.
To complete a prescription or a request.
The pharmacist will fill the prescription.
Phrasal Verbs
fill up
to make something completely full
She filled up the gas tank before the long trip.
fill in
to complete a form or document by adding information
Please fill in your name and address on the application.
fill out
to complete a form entirely
You need to fill out the customs declaration form upon arrival.
fill in for
to temporarily do someone else's job
I will fill in for the manager while she is on vacation.