Tonic

lime- or lemon-flavored carbonated water containing quinine

a sweet drink containing carbonated water and flavoring

(music) the first note of a diatonic scale

a medicine that strengthens and invigorates

of or relating to or producing normal tone or tonus in muscles or tissue

employing variations in pitch to distinguish meanings of otherwise similar words

(used of syllables) bearing the principle stress, usually accompanied by a change in pitch

relating to or being the keynote of a major or minor scale

imparting vitality and energy