| on same wavelength(expression, adjective, idiom, sweet, agreeable) |
| one and all(expression, idiom) |
| rhythmical(adjective, sweet, agreeable, sympathetic, suitable) |
| silvery(adjective, sweet, agreeable, sympathetic, suitable) |
| similar(adjective, sweet, agreeable, sympathetic, suitable) |
| simpatico(adjective, sweet, agreeable, sympathetic, suitable) |
| sonorous(adjective, sweet, agreeable, sympathetic, suitable) |
| suitable(adjective, sweet, agreeable, sympathetic, peaceful) |
| sweet-sounding(adjective, sweet, agreeable, sympathetic, suitable) |
| symmetrical(adjective, sweet, agreeable, sympathetic, suitable) |
| sympathetic(adjective, sweet, agreeable, suitable, peaceful) |
| symphonic(adjective, sweet, agreeable, sympathetic, suitable) |
| symphonious(adjective, sweet, agreeable, sympathetic, suitable) |
| synchronized |
| synchronous |
| tuned |
| tuneful(adjective, sweet, agreeable, sympathetic, suitable) |
| unitedly(adverb, together, jointly, harmoniously) |
| with it |
| with one voice(expression, idiom, adverb, together, jointly) |