4 senses for tonic as a Noun:
| Noun related (for tonic) gin and tonic hair tonic housatonic subtonic supertonic tonic accent tonic epilepsy tonic key tonic solfa tonic water tonicity |
5 senses for tonic as an Adjective:
| Adjective related (for tonic) acetonic architectonic atonic catatonic cytoarchitectonic decreasing monotonic diatonic hypertonic hypotonic increasing monotonic isotonic monotonic myotonic nonmonotonic pentatonic planktonic platonic plutonic tectonic teutonic |