Child - Children
tooth - teeth
sheep - sheep
hero - heroes
story - stories
dish - dishes
woman - women
glass - glasses
flower - flowers
man - men
boat - boats
language - languages
watch - hours
country - countries
knife - knives
address - addresses
leaf -leaves
foot -feet
umbrella - umbrellas
person - people
family - families
holiday - holidays
sandwich - sandwiches
city - cities