noun - the activity of climbing mountains

noun, informal - a large amount of something

verb, formal - to be placed on top of something tall

verb, formal - to overcome a difficulty or a problem

noun, technical - the unintentional ending of a pregnancy when a baby is born before it is fully developed and able to survive

noun - a talk, a conversation

noun - a promise

adjective - likely to change suddenly, especially by getting worse

adjective - (of a person) changing moods quickly, especially by becoming angry

noun - a message or other information that is sent by one person to another within the same company

noun - an official note with instructions to pay a fine, it is put on your car when you have parked it somewhere illegally

noun - an official who lives in a foreign country representing his or her own country there

noun, formal - the act of causing damage, harm or disadvantage

noun - a person who gives blood or an organ to be used by doctors to help another person

noun - a person or an organization that gives something, especially money, clothes or food, to a charity or people who need it