preposition - n. a word that shows direction, location or time, or introduces an object

adverb - n. a word that is often used to show time, manner, place, or degree

tunnel - n. a passage that goes through a hill or under the ground

park - n. a piece of public land in or near a city that can be used for pleasure and exercise

accent - n. a way of pronouncing words that occurs among the people in a region or country

phrasal verb - n. a group of words that functions as a verb and is made up of a verb and a preposition, an adverb, or both

dictionary - n. a reference book that contains words listed in alphabetical order and gives information about the meanings, forms and pronunciations