fill up (1)
Meaning: If you fill something up, you make it full.
- fill up sth Don't forget to fill up your car before you leave. It's a long way to the next gas station.
- fill sth up with sth When the water level in the coffee machine gets down to that red line, fill it up with water from this tap.
fill up (1): container, glass, jar, bottle, tank, car, bag, suitcase
We ran out of water on the trek because Philip had forgotten to fill up