inflate
verbUK /ɪnˈfleɪt/
US /ɪnˈfleɪt/
To fill something with air so it gets bigger.
We inflate the balloons for the party.
OTHER MEANINGS
2. To make prices or numbers go up.
The store inflated its prices during the holiday.
3. To make something seem bigger or more important than it really is.
He inflated his story to impress his friends.
4. To fill something with a gas, like a tire.
Please inflate the bike tires before we ride.