cell phone – n. the American name for mobile phone

apostrophe – n. the punctuation mark ‘ used to show that letters or numbers are missing

contraction – n. the act or process of making something smaller or of becoming smaller

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

visible – adj. able to be seen

park – v. to leave a vehicle in a particular place

balk – v. to refuse to do what someone else wants you to do

practice – v. to do something again and again in order to become better at it