How many? (people)
Nannin
How many? (small animals, etc)
nanbiki
And (beginning of sentences)
ushite
sick, sickness
byouki
students
seito
a customer or guest
okyakusama
a pet
petto
class
kurasu
hospital
byouin
pet hospital
doubutsubyouin
family
kazoku
brothers and sisters; siblings
kyoudai
child; children
kodomo
one (people)
hitori
two (people)
futari
three (people)
sannin
four (people)
yonin
five (people)
gonin
six (people)
rokunin
seven (people)
nananin
eight (people)
hachinin
nine (people)
kyuunin
ten (people)
juunin
eleven (people)
juuichinin