An onomatopoeia that means a sound like the rustling of leaves?
968291
You sort of answer your own question:  the word "rustle" itself is  onomatopoetic.  However, I agree that there could be a more evocative way of expressing the sound you want.  The Spanish word for this is beautiful and perfect: "susurro".  Consider using it.
118840
1. From an unexpected or unforeseen source.\n2. At a completely unexpected time\n\nI've also heard it as "Out of the clear blue sky"
1062898
You're thinking of whinge. Whine is pronounced the same as wine. They both mean the same thing pretty much, except when you whine you are moaning in a higher pitch than when you whinge.
968106
Here is a word, an onomatopoeia to be exact, that will tell you why:\n\n"Baaaaaaaaaaaaaa"
290661
Sounds like bed bugs.
1011477
Try saying brrrrrrr...over and over...as in "...brrrrr it's so cold!" Say it without sound first....feel the vibration it produces....not burrrr....it's brrrrrrrrr....over and over....without sound then add sound when you feel it tremble- feel it tremble I tell ya!...you can do it! Learning how to whistle is the same.....keep at it...until all of a sudden - voila! You did it!!!!
15465
According to webster's dictionary noise is loud, confused, or senseless shouting or outcry\nNoise also is one that lacks agreeable musical quality or is noticeably unpleasant b : any sound that is undesired or interferes with one's hearing of something c : an unwanted signal or a disturbance (as static or a variation of voltage) in an electronic device or instrument (as radio or television); broadly : a disturbance interfering with the operation of a usually mechanical device or system d : electromagnetic radiation (as light or radio waves) that is composed of several frequencies and that involves random changes in frequency or amplitude e : irrelevant or meaningless data or output occurring along with desired information\n\nThis to me is not definitive enough to describe a tree.  \nYes you can measure noise but "sound" seems to be a better description than noise for a tree falling (previous question)
931999
Assonance is the repetition of vowel sounds in a poem.  So in this poem most lines have vowel sounds that repeat.  Sometimes it is the sound of a long vowel, and sometimes a short vowel.  \n\nIn this poem you have the words boat, croak, goes, flotilla, float, and moats all with the long O sound. \n\nDay, flame, and tame all have long A.\n\nSlap, clap, back, lap and flat all have short A\n\nFloors, oars\n\nturtles, lurch, murky\n\ndig, dingles, shingles\n\npines, shine\n\ngreen, creeds.\n\nI hope this helps.  Best of luck.
454922
Strange question, but I guess the answer would be "tones"
1171543
Whoosh - the sound of wind rushing through a tunnel\nSizzle - the sound of cold rain hitting a hot sidewalk\nRustle - the sound of little critters running through the woods
660303
Oh man. Clicking fingers? Like clapping, walking, talking... probably the roots of music, when some "distant ancestor" (chimp) found banging things sounded good...
591632
Onomatopoeia is a word that imitates the sound it represents.....like "splash, wow, gush, kerplunk"
620295
heck, encarta encylopedia has this feature. it goes with sounds so u can practice pronunciation.
994520
How do you define sound? The tree falling in the forest creates a pressure wave that would be heard by a listener as a sound. Does your defintion require a listener? The pressure wave exists whether or not there is one.  Merriam-Webster defines sound as:\n\n1 a : a particular auditory impression : TONE b : the sensation perceived by the sense of hearing c : mechanical radiant energy that is transmitted by longitudinal pressure waves in a material medium (as air) and is the objective cause of hearing
801289
Thay sway in the wind,\nTheir leaves touch the ground,\nFrom fallen branches,\nAnd rustling sound.\n\nFrom green they turn,\nTo red & gold hues,\nIn autumn & winter,\nThey know their cue.\n\nTil spring returns,\nThe trees remain bare,\nAs all round green trees,\nAre somehow quite rare.\n\n................................................................\n\nIts all I could do in such a short time, sorry if its a bit naff!
728197
Na onomatopoiea. This is a word that reflects a sound effect, such as pow.
566380
Nice one.  My favorite one like this is :\n\nIgnorance is bliss.