a. not allowing water to enter

a wide wall or flat area built out into the water, used for getting on and off boats

famous or well-known for sth. bad

extremely weak

a group of people of the same type

an event which is very bad for the people involved

without anything to make you feel happy or hopeful

become involved in an argument, fight, or other difficult situation in order to change what happens

officially judge how successful, effective, or valuable sth. is

sth. wrong with your body or mind which shows that you have a particular illness