sound, call, swallow, sounds, lisp, chorus

shrill, loud, incessant, faint, constant, melodious, cheerful, soft, sweet, monotonous, lonely, occasional, ceaseless, low, noisy, happy, sharp, merry, sultry, melancholy, continual, distant, continuous, joyous, much, persistent, tiresome, sudden, casual, excited, endless, plaintive, rhythmic, gay, steady, insistent, weary, familiar, usual, pitched, gentle, busy, pleasant, intermittent, ventriloquial, emphatic, slight, lively, frantic, perpetual, daylong, strange, sleepy, mere, thin, musical, bird, friendly, multitudinous, like, feeble, peculiar, clear, electronic, joyful, doleful, tiny, transient, drowsy, universal, chirp, female, quick, eternal, rapid, hoarse, sonorous, sibilant, manifold, unwearied, violent, continu'd, fitful, bright, strident, mournful, subdued, frenzied, voluble, satisfied