noun - an object that is valued because it is very rare

noun - a short piece of an article, a book, etc. that gives only the most important facts

verb - to make an organization, a system, etc. more effective

adjective - done or said too many times, so it is no longer exciting

adjective - made badly and carelessly

noun, informal - a place, event, situation, etc. where everything is in disorder

adjective - very bad; terrible

adjective - main or most important

verb - to be much better than someone or something

noun - the best result possible

adjective - likely to produce the best results possible

adjective, literary - (of a feeling) extremely strong

verb - to make something or someone less important so that people start to respect them less

verb - to reduce the price

verb - to improve something