We counted. Including animal sounds, my 1 1/2 year old speaks (or has spoken) about 40 words. Incomplete list:

mama
dada
baba

kurka (chicken / bird)
katka (duck)
elephant
mooo
baaa
heehaw
xriu xriu (oink oink)
bliblibli (turkey noise)
meow
how how (woof woof)
tweet tweet
chirp chirp

kava
apricot (yes)
banana
kasha

kaka

titsa (mother’s milk)

open
closed

up
down

wow

woo hoo

car
tractor
bus
brrrrruuum
beep beep
choo choo

purple
green
blue