1.  bow-wow(n = noun.event) - the bark of a dog;
is a kind of bark

2.  bow-wow(n = noun.animal) barker, doggie, doggy, pooch - informal terms for dogs;
is a kind of canis familiaris, dog, domestic dog

bow-wow, int. & n.
--int. an imitation of a dog's bark.
--n.
1 colloq. a dog.
2 a dog's bark.

Etymology:
imit.

VB  cry, roar, bellow, blare, rebellow, growl, snarl, bark, bow-wow, yelp, bay, bay at the moon, yap, yip, yipe, growl, yarr, yawl, snarl, howl, grunt, gruntle, snort, squeak neigh, whinny, bray, mew, mewl, meow, purr, caterwaul, pule, baa, bleat, low, moo, troat, croak, peep, coo, gobble, quack, honk, gaggle, guggle, crow, caw, squawk, screech cackle, cluck, clack, chuck, chuckle, hoot, hoo, chirp, cheep, chirrup, twitter, cuckoo, warble, trill, tweet, pipe, whistle, hum, buzz, hiss, blatter, ratatat.