To increase (something) in extent or intensity; to intensify or step up.
To climb.
In technical support, to transfer a customer, a problem, etc. to the next higher level of authority
To swell; to puff up.
To decompress (data) that was previously deflated.
To enlarge an object by pushing air (or a gas) into it; to raise or expand abnormally
To enlarge by filling with air (or a gas).