a sensitivity to certain substances which causes some people to be sick
I have an allergy to animal hair.

to be very physically tired
After the marathon, I was exhausted.

being free from illness, disease, and other physical problems
Tommy is a very healthy boy.

hurt somebody or something
I was injured when I fell from the swing.

If someone is miserable, they are very unhappy.
He was miserable after his dog died.

a fine, usually yellow powder that is produced by plants and is moved by insects or wind to other plants of the same type for the purpose of producing seeds
Bees are attracted to a plant's anther, where they find pollen for food.

to fix or restore something that is broken
Who can repair this broken car?

to bring a person or thing back to a former, useful condition or position
A good rainfall will restore water levels after a drought.

to quickly force air out through the nose and mouth
Please use a tissue when you sneeze.

something in food, often fruits and vegetables, that keeps humans healthy
Foods like ice cream and candy have very few vitamins.