(often + up) to put into (something) as much as can be held or conveniently contained

to supply (something) with a full complement

The class is already filled

to cause (something) to swell or billow

Wind filled the sails

to trim (a sail) to catch the wind

to repair the cavities of (a tooth)

(often + up) to stop up or plug (a hole or gap)

to feed or satiate (somebody)

to satisfy or fulfil (a need or requirement)

NAmer to supply the requirements of (an order, prescription, etc)

to occupy the whole of (a place)

Smoke filled the room

to spread through (a place)

to occupy (time)

What do you do to fill your day?

to hold and perform the duties of (an office)

to place a person in (a vacancy)

as much as one can eat or drink

Eat your fill

as much as one can bear

I've had my fill of them for today

the quantity needed to fill something

a fill of pipe tobacco