What does fill mean?

Fill as a verb generally means to make something full, to occupy a space completely, or to supply what is missing. You can fill a glass with water, meaning pour liquid until container is full. You can fill a room with furniture, meaning occupy space with items. Figuratively, fill can mean to satisfy, as in fill a need, fill an order, or fill a prescription, meaning provide what is required. It can also mean to take up a position, as in fill a vacancy or fill a role, meaning become the person who holds that position. Fill also appears in phrasal verbs like fill in, meaning provide information or substitute, fill out meaning complete a form, fill up meaning become completely full, and fill in for someone meaning replace temporarily. As a noun, fill can mean material used to fill a hole, like landfill, or an amount that satisfies hunger, as in eat your fill. Overall, core idea of fill is completeness, fullness, occupying, or supplying. It is a common everyday word used in physical, professional, and emotional contexts.