yeah, right webster.
you know the sounds things make?
well, when you write that down, youve got yourself some onomatopeia.

heres some examples:

originator     english               swedish           japanese

cat            meow                  -                 nya-
dog            woof                  vuuv              wan wan
cow            moo                   -                 mo-
sheep          baa                   -                 me-
bird           chirp                 peep              chun chun
horse          neigh                 gneiga            hihin
mouse          squeak                peep              chu- chu-
rooster        cock a doodle doo     cook a li koo     kokekokko-
pig            oink                  nerf              bu-
heart beat     da da                 bom bom           doki doki
scissors       snip snip             hrr hrr           choki choki

please feel free to add more .....

*the "-" for sweden indicates that the sound is the same as in english
*the "-" in japanese indicates a drawn out sound

please also note that the spelling of the non-english words is incorrect, but should give a fair indication of how to make the actual sounds.