field – n. an area of work, study, etc.
architecture – n. the art or science of designing and creating buildings
irrational number – n. a number that cannot be expressed as a ratio between two integers and is not an imaginary number
crust – n. the outside part of a pie
dessert – n. sweet food eaten after the main part of a meal
light-hearted – adj. having or showing a cheerful and happy nature; not serious