Mobility rhymes with:
nobility, ability, acceptability, adaptability, admissibility, affordability, amiability, applicability, availability, capability, combinability, compatibility, comprehensibility, debility, deductibility, electability, feasibility, flexibility, inaccessibility, invisibility, irresponsibility, irritability, legibility, malleability, nobility, overwhelmability, palatability, possibility, probability, rehability, reliability, responsibility, susceptibility, viability
Mobility sounds like:
manifold, manipulate, manipulated, maplewood, mayfield, minefield, minnifield, mofield, muffled, muffoletto, mumbled