a person who does something, especially helping other people, willingly and without being forced or paid to do it:
volunteer
15
acceptable or right for someone or something
suitable
15
If you succeed, you achieve something that you have been aiming for, and if a plan or piece of work succeeds, it has the results that you wanted:
succeed
15
a small piece of paper or plastic with a picture or writing on one side and glue or another similar substance on the other side, so that it will fasten to a surface
sticker
15
to become or to make something become smaller in size, amount, degree, importance, etc.
reduce
15
a formal party at which important people are welcomed
reception
15
without violence
peaceful
15
the foot of an animal that has claws or nails, such as a cat, dog, or bear
paws
15
(of a disease) existing in almost all of an area or in almost all of a group of people, animals, or plants
pandemic
15
pay money to charity
make a donation
15
making a lot of noise
loudly
15
a piece of equipment used for climbing up and down, that consists of two vertical bars or pieces of rope joined to each other by a set of horizontal steps:
ladder
15
a person or animal that lives in a particular place
inhabitants
15
the unfair situation in society when some people have more opportunities, money, etc. than other people
inequality
15
people in general
humanity
15
the activity or business of providing medical services: