Synonyms for Maximize:

n.

bulk out, distend, puff up, swell, scale up. maximize (noun)
maximise.

v.

change (verb)
maximise.
increase (verb)
broaden, reinforce, augment, burgeon, widen, accrue, fatten, enlarge, boost, lengthen, magnify, grow, advance, inflate, raise, increment, expand, amplify, add, heighten, upgrade, multiply, elevate, increase, extend.
inflate (verb)
boost, augment, raise, puff up, distend, magnify, expand, widen, amplify, enlarge.

Other synonyms:

scale up, bulk out, distend. puff up. swell. Other relevant words:
maximise, swell.