Inflating

verb

1. To enlarge an object by pushing air (or a gas) into it; to raise or expand abnormally

   "You inflate a balloon by blowing air into it."

2. To enlarge by filling with air (or a gas).

   "The balloon will inflate if you blow into it."

3. To swell; to puff up.

   "to inflate somebody with pride or vanity"

4. To decompress (data) that was previously deflated.