1. good
2. easily
3. considerably
4. substantially, intimately
5. advantageously
6. comfortably

1. well
2. all right, fine, asymptomatic, symptomless, cured, healed, recovered, good, fit, healthy, healthy, good
3. fortunate, advisable

1. excavation
2. hole in the ground, vessel
3. wellspring
4. fountainhead, source, shaft
5. compartment

1. swell
1. surface, come up, rise up, rise