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

phrase – n. a brief expression that is commonly used

academic – adj. of or relating to schools and education

clause – n. a part of a sentence that has a subject and verb

linguist – n. a person who studies language and the way languages work

predicate – n. the part of a sentence that expresses what is said about the subject

interchangeably – adj. capable of being used in place of each other