Manpower rhymes with:
brainpower, airpower, brainpower, firepower, horsepower, seapower, willpower, airpower, belflower, bellflower, brainpower, cauliflower, coneflower, cornflower, eisenhower, fillauer, firepower, hightower, horsepower, hufbauer, icenhower, landauer, mayflower, safflower, seapower, sunflower, wallflower, wildflower, willpower, zembower
Manpower sounds like:
maberry, mabery, mabrey, mabry, maneuver, manfra, manfre, mayberry, maybury, mayfair, mbira, member, mooberry, mover, mowbray, muhabara, mumper, mumphrey, mumpower