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

edition - n. a particular version of a book

growth spurt - n. an occurrence of growing quickly and suddenly in a short period of time

guess - v. to form an opinion or give an answer about something when you do not know much about it

function - v. to work or operate

errand - n. a short journey that you take to do or get something

task - n. a piece of work to be done or undertaken

informally - adv. in a way that is not suited for serious or official speech and writing